UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number			811-02224

MML Series Investment Fund
(Exact name of registrant as specified in charter)

1295 State Street, Springfield, MA					01111
(Address of principal executive offices)					(Zip code)

John F. Carlson 1295 State Street, Springfield, MA 01111
(Name and address of agent for service)

Registrant’s telephone number, including area code:				413-788-8411

Date of fiscal year end:	12/31/2006

Date of reporting period:		12/31/2006

Item 1. Reports to Stockholders.

MML Series Investment Fund

Annual Report

for the period ended

December 31, 2006

	MML Large Cap Value Fund
	MMLEquity Index Fund
	MMLGrowth Equity Fund
	MMLOTC 100 Fund
	MMLSmall Cap Growth Equity Fund
	MML Emerging Growth Fund

You can’t predict. You can prepare®.

INVEST

INSURE

RETIRE

Table of Contents

Letter to Shareholders					1

Portfolio Manager Reports					3

Portfolio of Investments					21

MML Large Cap Value Fund					21

MML Equity Index Fund					24

MML Growth Equity Fund					30

MML OTC 100 Fund					34

MML Small Cap Growth Equity Fund					36

MML Emerging Growth Fund					41

Statement of Assets and Liabilities					44

Statement of Operations					48

Statement of Changes in Net Assets					50

Financial Highlights					54

Notes to Financial Statements					61

Report of Independent Registered Public Accounting Firm					71

Trustees and Officers (Unaudited)					72

Federal Tax Information (Unaudited)					75

Other Information (Unaudited)					76

This material must be preceded or accompanied by a current prospectus for the MML Series Investment Fund. Investors should consider a Fund's investment objective, risks and charges and expenses carefully before investing. This and other information about the investment company is available in the prospectus. Read it carefully before investing.

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MML Series Investment Fund – Letter to Shareholders

To Our Shareholders

December 31, 2006

John Carlson

Your financial representative can provide you with specific guidance, but MassMutual continues to believe that most investors should consider an investment program that features a diversification strategy that suits their risk tolerance, financial goals and time horizon, and that keeps them exposed to the powerful forces of long-term growth potential.

A Look Back at 2006: Stocks' Impressive Year

Despite a slow start in the first half, particularly in the U.S., stocks worldwide made some impressive gains in 2006. For the full year, the Dow Jones Industrial Average^SM ("the Dow"), which measures blue-chip stock activity, returned 16.29%. The technology-laden Nasdaq Composite^® Index ("Nasdaq") advanced 9.52% and the S&P 500^® Index, a broad measure of U.S. large-cap stock performance, gained 15.78%. The Russell 2000^® Index, a measure of small-cap equity results, advanced 18.36%. But the standout performer in the equity markets by a large margin was the MSCI^® EAFE^® Index, a benchmark for foreign stocks, which returned 26.34%.*

In the bond market, the Lehman Brothers^® Aggregate Bond Index, which measures the U.S. investment-grade fixed-income markets, returned 4.33% for the 12-month period ended December 31.* Bond investors continued to struggle due to a Federal Reserve ("Fed") that remained in a tightening mode until August.

Taking a closer look at the year on a quarter-by-quarter basis, most U.S. stock indexes posted strong gains in the first quarter of 2006 – although foreign stocks outperformed their U.S.-based counterparts in a pattern that would continue throughout the year. In the fixed-income markets, the Lehman Brothers Aggregate Bond Index fell slightly. The second quarter saw a turnaround in the fortunes of equity markets worldwide, as investor uncertainty led many of the world's markets lower. Meanwhile, with rising inflation and interest rates, bond prices remained on the defensive.

Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The Dow posted a series of new highs and briefly crossed the 12,500 barrier, advancing 6.71% for the quarter. The S&P 500 Index broke the 1,400 level and closed up 6.69%. Small caps also ended the year strongly, as evidenced by the Russell 2000 Index, which rose 8.90%. For its part, Nasdaq returned 6.95% for the fourth quarter. The U.S. dollar weakened slightly during the period, supporting the returns of foreign stocks and helping the MSCI EAFE Index to rise 10.35%. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

In the fixed-income market, bond prices changed little in the fourth quarter, due in part to low default rates and generally favorable corporate earnings. Against this backdrop, the Lehman Brothers Aggregate Bond Index returned 1.24%. The yield curve remained inverted, with the yields of shorter-term securities generally staying higher than those of longer-term issues.

* Indexes are unmanaged, do not incur fees or expenses and cannot be purchased directly for investment.

(Continued)

MML Series Investment Fund – Letter to Shareholders (Continued)

It was a good year . . . after all

At the end of 2005, experts pointed out that the equity market had advanced for three consecutive years, the Fed was raising interest rates and crude oil was on the rise. Not only that, but 2006 was the second year in the presidential cycle, a time that often heralds weak performance for stocks. For the first half of the year, the markets appeared ready to fulfill that prophecy, since most of the popular averages were sluggish from January through early May.

After the Fed's Open Market Committee rate hike on May 10, investors reacted with a sell-off, triggering a two-month market correction. It seemed that their patience with the Fed's credit-tightening had reached an end. In retrospect, however, the correction set the stage for the sustained rally that began in July and continued through the end of the year.

Why did the equity markets reverse course and head higher? During the summer, data emerged that suggested a mildly slowing, but still-expanding economy (i.e., a "soft landing") – which was seen as the best-case outcome after the cycle of Fed tightening. Inflation eased a bit over the remainder of the year, and those developments made it feasible for the central bank to keep short-term interest rates unchanged in August. Stable interest rates, in turn, fueled share prices. Falling energy prices also drove stocks higher during the second half of the year and helped to improve inflation readings. After trending higher for the first six months of 2006, crude oil declined rapidly in August and September, stabilizing around the $60 per barrel level for the remainder of the year. Meanwhile, natural gas retreated by almost 50% during the year's second half.

Outlook

The U.S. economy's ability to remain relatively healthy in the face of rising interest rates and energy prices for much of 2006 serves as another reminder that our economy is a potent force. As we begin 2007, naturally some concerns remain. In particular, investors are waiting to see if the economy weakens further. Offsetting this worry somewhat is the likelihood that the Fed could reverse course and lower interest rates if the economy appeared to be seriously faltering. These uncertainties and the new year provide you with an excellent opportunity to touch base with your financial representative, who can help you assess your comfort level with your current investment strategy – and whether or not it is aligned with today's market conditions. That said, MassMutual continues to believe that most investors should consider an investment program that features a diversification strategy that suits their risk tolerance, financial goals and ti me horizon, and that keeps them exposed – through a judicious mix of stock- and bond-focused investments – to the powerful forces of long-term growth potential.

John Carlson
President

The information provided is the opinion of MassMutual Retirement Services Investments Marketing as of 1/1/07 and is subject to change without notice. It is not to be construed as tax, legal or investment advice. Of course, past performance does not guarantee future results.

MML Large Cap Value Fund – Portfolio Manager Report

What is the investment objective of the MML Large Cap Value Fund – and who is the Fund's sub-adviser? This Fund seeks both capital growth and income by investing in large-capitalization companies that the Fund's sub-adviser, Davis Selected Advisers, L.P. (Davis), believes foster the creation of long-term value, such as proven management, a durable franchise and business model, and sustainable competitive advantages.

How did the Fund perform during the 12 months ended December 31, 2006? The Fund returned 14.18%, trailing the 15.78% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period? Most U.S. stock indexes posted strong gains in the first three months of 2006 – although foreign stocks outperformed their U.S.-based counterparts in a pattern that would continue throughout the year. The second quarter saw a turnaround in the fortunes of equity markets worldwide, as investor uncertainty led many of the world's markets lower.

Both the stock and bond markets saw good returns in the third quarter of 2006. Markets were buoyed by the Federal Reserve's ("Fed's") decision to hold interest rates steady in both August and September, falling crude oil prices and favorable readings in some key inflation measures. Foreign stocks also fared well. Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The U.S. dollar weakened slightly during the period, supporting the returns of foreign stocks and helping the MSCI^® EAFE^® Index rise 10.35%. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance? Consumer discretionary companies were the most important contributors to the Fund's performance over the 12-month period ended December 31, 2006. The Fund benefited from careful stock selection within this sector, as its consumer discretionary companies outperformed the Fund's benchmark, the S&P 500 Index. Diversified financial and consumer staple companies also made important contributions to performance. Two diversified financial companies, JPMorgan Chase and American Express, and one consumer staples company, Altria, were among the top contributors to performance. On the other hand, Hershey Foods (in the consumer staples sector) was among the top detractors from performance.

The Fund's largest investment in 2006 was in insurance companies. Although these companies made a positive contribution to performance, they underperformed the benchmark. Berkshire Hathaway and Loews were among the top performers. Progressive and Transatlantic Holdings were among the major detractors. The Fund's investments in telecommunication service and energy companies also contributed to the Fund's underperformance in 2006. Although telecommunication service companies were the strongest performers for the benchmark, the Fund's holdings within that sector did not perform as well. Similarly, while energy companies made positive contributions to the Fund's performance, they too underperformed the S&P 500 Index. One energy company in particular, however, ConocoPhillips, was among the top contributors to the Fund's absolute performance. Conversely, telecommunication services holding Sprint Nextel (purchased in March), and, EOG Resources, an energy company, were among the top detractors from the Fund's performance for 2006.

The Fund had approximately 10% of its assets invested in foreign companies as of December 31, 2006. As a group, the foreign companies owned by the Fund outperformed the benchmark over the 12-month period.

Consistent with our low-turnover strategy, only two companies dropped out of the Fund's top 10 holdings – Progressive and Golden West Financial. Progressive remained among the Fund's top 20 holdings at year-end and Wachovia acquired Golden West Financial. Taking Progressive and Golden West Financial's places in the top 10 were ConocoPhillips and Comcast, both of which were already top 20 holdings.

What is your outlook? Although it is impossible to predict with any certainty the direction that the equity markets will take throughout 2007, we do expect that numerous forces will continue to influence the direction that the market takes moving forward – such as oil prices, inflation, geopolitical unrest and Fed policy. We believe, however, that we have positioned the Fund to be ready to handle the wide array of market conditions that investors may face throughout the remainder of the year.

MML Large Cap Value Fund – Portfolio Manager Report (Continued)

MML Large Cap Value Fund

Industry Table

(% of Net Assets) on 12/31/06

Banking, Savings & Loans	12.7	%
Energy	11.8	%
Financial Services	11.7	%
Insurance	10.9	%
Retail	7.6	%
Broadcasting, Publishing & Printing	5.0	%
Commercial Services	4.5	%
Tobacco	4.5	%
Industrial — Diversified	4.2	%
Healthcare	2.7	%
Prepackaged Software	2.2	%
Containers	2.0	%
Beverages	2.0	%
Automotive & Parts	2.0	%
Entertainment & Leisure	1.7	%
Building Materials & Construction	1.5	%
Cosmetics & Personal Care	1.5	%
Transportation	1.4	%
Communications	1.2	%
Telephone Utilities	1.1	%
Pharmaceuticals	0.9	%
Computers & Office Equipment	0.6	%
Computers & Information	0.6	%
Foods	0.5	%
Metals & Mining	0.4	%
Advertising	0.2	%
Computer Related Services	0.2	%
Household Products	0.2	%
Travel	0.1	%
Short-Term Investments and Other Assets and Liabilities	4.1	%
	100.0	%

*MML Large Cap Value Fund* *Largest Stock Holdings (12/31/06)* Altria Group, Inc. American Express Co. American International Group, Inc. Berkshire Hathaway, Inc. Cl. A Comcast Corp. Special, Cl. A ConocoPhillips Costco Wholesale Corp. HSBC Holdings PLC JP Morgan Chase & Co. Tyco International Ltd.

MML Large Cap Value Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Large Cap Value Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/1/00 -}_12/31/06
MML Large Cap Value Fund		14.18	%		8.67	%		4.40	%
S&P 500 Index		15.78	%		6.19	%		1.30	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Performance data quoted represents past performance; past performance is not predictive of future results. The investment return and principal value of shares of the Fund will fluctuate with market conditions so that shares of the Fund, when redeemed, may be worth more or less than their original cost. Current performance of the Fund may be lower or higher than the performance quoted. Performance data current to the most recent month end may be obtained by accessing the website www.massmutual.com.

Investors should note that the Fund is a professionally managed mutual fund, while the S&P 500 Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Equity Index Fund – Portfolio Manager Report

What is the investment objective of the MML Equity Index Fund – and who is the Fund's sub–adviser? The Fund seeks to provide investment results that correspond to the price and yield performance of publicly traded common stocks in the aggregate as represented by the S&P 500^® Index. The Fund pursues this objective by investing at least 80% of its net assets in the equity securities of companies that make up the S&P 500 Index. The Fund's sub-adviser is Northern Trust Investments, N.A. (Northern).

How did the Fund perform during the 12 months ended December 31, 2006? The Fund's Class I shares returned 15.30%, moderately trailing the 15.78% return of the S&P 500 Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period? The Federal Reserve ("Fed") raised interest rates twice during the first quarter of 2006, bringing the federal funds rate to 4.75% as of March 31. Oil prices remained a concern for investors and cast a shadow over future growth in equity markets in both the U.S. and abroad. During this timeframe, crude oil prices in the U.S. ranged between $60 and $70 per barrel, within striking distance of the 2005 high of $71.

Turning to the second quarter, the Fed maintained its tightening policy and increased interest rates by 0.25% at each Federal Open Market Committee ("FOMC") meeting in May and June. The June increase was the 17th consecutive one since June 2004, and brought the federal funds rate to 5.25% as of June 29. The continued rise in energy and commodity prices fueled investor concerns about inflationary pressure on the U.S. economy. The lack of substantial progress in talks with Iran regarding their nuclear program contributed substantially to rising oil prices; additionally, the escalation of the conflict with North Korea that culminated with the actual testing of long-range missiles injected nervousness into the markets.

During the third quarter, equity markets benefited from the 3.9% fall in oil prices as well as the continued decline in interest rates, as the 10-year U.S. Treasury yield slipped to about 4.6% by the end of the quarter. Broadly speaking, equity investors saw lower energy costs and interest rates as beneficial to consumers and businesses. The Fed, however, showed less optimism about economic prospects, which helped to prompt its August decision to halt its tightening policy of the federal funds rate. This marked one of the most significant developments in the U.S. during the quarter.

Domestic stocks forged higher once again during the fourth quarter, and many of the major indexes even reached some notable milestones. The U.S. dollar weakened slightly during the period, which supported the returns of foreign stocks. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices. After reaching a high of $77.03 per barrel during the third quarter of 2006, oil prices retreated to the low $60s by the end of 2006.

What factors contributed to the Fund's performance? During the first quarter of 2006, large-capitalization stocks underperformed both mid- and small-cap stocks. Value stocks outpaced growth issues during the period. Telecommunication services was the best-performing sector in the Index, and utilities was the worst-performing sector. Turning to the second quarter, large-cap stocks outperformed both mid- and small-cap issues. Value stocks once again outpaced their growth counterparts. During the quarter, utilities was the best-performing sector in the Index, and technology was the worst-performing sector.

During the third quarter, telecommunication services was the best-performing sector in the Index. Health care, financials and information technology also showed solid results. With the decline in oil and gas prices, it was no surprise that energy was the worst-performing sector. In a reflection of the gradually slowing U.S. economy, materials was slightly negative.

All sectors of the Index posted positive results for the fourth quarter. Materials was the top performer, followed by the energy sector. Financials and information technology also posted healthy returns. Health care was the quarter's worst-performing sector.

What is your outlook? Although it is impossible to predict with any precision the direction that the equity markets will take in 2007, we do expect that many of the same forces that have influenced the markets over the past several years will continue. These factors include oil prices, inflation, geopolitical unrest and Fed policy. We are confident, however, that the Fund is positioned to pursue returns consistent with the S&P 500 Index.

MML Equity Index Fund – Portfolio Manager Report (Continued)

MML Equity Index Fund

Industry Table

(% of Net Assets) on 12/31/06

Energy	9.7	%
Banking, Savings & Loans	9.2	%
Pharmaceuticals	7.9	%
Financial Services	6.6	%
Electrical Equipment & Electronics	5.7	%
Insurance	5.4	%
Retail	4.5	%
Computers & Information	4.0	%
Telephone Utilities	3.4	%
Prepackaged Software	3.2	%
Electric Utilities	3.1	%
Broadcasting, Publishing & Printing	2.5	%
Aerospace & Defense	2.3	%
Cosmetics & Personal Care	2.2	%
Medical Supplies	2.1	%
Beverages	2.0	%
Industrial — Diversified	1.7	%
Transportation	1.7	%
Tobacco	1.5	%
Foods	1.5	%
Commercial Services	1.4	%
Chemicals	1.3	%
Communications	1.2	%
Computers & Office Equipment	1.2	%
Healthcare	1.1	%
Entertainment & Leisure	1.1	%
Information Retrieval Services	1.1	%
Machinery & Components	1.1	%
Metals & Mining	0.9	%
Real Estate	0.9	%
Apparel, Textiles & Shoes	0.6	%
Automotive & Parts	0.6	%
Restaurants	0.6	%
Data Processing & Preparation	0.6	%
Household Products	0.4	%
Manufacturing	0.4	%
Home Construction, Furnishings & Appliances	0.4	%
Lodging	0.4	%
Forest Products & Paper	0.4	%
Computer Integrated Systems Design	0.3	%
Food Retailers	0.3	%
Advertising	0.2	%
Containers	0.2	%
Building Materials & Construction	0.2	%
Computer Programming Services	0.1	%
Toys, Games	0.1	%
Air Transportation	0.1	%
Computer Related Services	0.1	%
Photography Equipment/ Supplies	0.1	%
Retail — Grocery	0.1	%
Industrial — Distribution	0.0	%
Travel	0.0	%
Short-Term Investments and Other Assets and Liabilities	2.3	%
	100.0	%

*MML Equity Index Fund* *Largest Stock Holdings (12/31/06)* Altria Group, Inc. American International Group, Inc. Bank of America Corp. Citigroup, Inc. Exxon Mobil Corp. General Electric Co. Johnson & Johnson Microsoft Corp. Pfizer, Inc. The Procter & Gamble Co.

MML Equity Index Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Equity Index Fund Class I and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/1/97 -}_12/31/06
MML Equity Index Fund Class I		15.30	%		5.74	%		7.27	%
S&P 500 Index		15.78	%		6.19	%		7.78	%

Hypothetical Investments in MML Equity Index Fund Class II, Class III and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/1/00 -}_12/31/06
MML Equity Index Fund Class II		15.54	%		5.92	%		1.02	%
MML Equity Index Fund Class III		15.72	%		6.06	%		1.12	%
S&P 500 Index		15.78	%		6.19	%		1.30	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Growth Equity Fund – Portfolio Manager Report

What is the investment objective of the MML Growth Equity Fund – and who is the Fund's sub-adviser? This Fund seeks long-term growth of capital and future income by normally investing at least 80% of its net assets in the common stocks and securities convertible into common stocks of companies that the Fund's sub-adviser, Grantham, Mayo, Van Otterloo & Co. LLC (GMO), believes offer prospects for long-term growth.

How did the Fund perform during the 12 months ended December 31, 2006? The Fund returned 1.98%, lagging the 15.78% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment background during the period? Stocks picked up in the first quarter of 2006 exactly where they left off in late 2005, posting solid gains in the face of economic uncertainty and potentially setting the stage for a fourth consecutive year of equity gains since 2002. Solid growth in corporate profits and signs of an uptick in overall economic activity helped boost share prices during the first three months of the year. High-quality U.S. stocks again underperformed their low-quality counterparts, although the spread appeared to taper during the period. In a turnaround, the majority of the U.S. equity market indexes posted negative returns in the second quarter, with the exception of the Dow Jones Industrial Average^SM, which advanced 0.37%. Investor uncertainty caused in part by global unrest and rising oil prices l ed the markets lower. The spread between high- and low-quality stocks was considerable during the timeframe, although both ended the quarter in negative territory.

Both the stock and bond markets saw good returns in the third quarter of 2006. Markets held up well on news of the Federal Reserve's ("Fed's") decision to hold interest rates steady in both August and September, falling crude oil prices and favorable readings in some key inflation measures. Foreign stocks also fared well. Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance? The Fund's overweight position (relative to its benchmark, the S&P 500 Index) in health care and its underweight position in the services sector hindered portfolio performance in the first quarter. Lower-than-benchmark positions in the food and beverage, machinery and manufacturing sectors contributed to relative returns, but not enough to offset overall negative sector performance. Stock selection was negative for the quarter, due in large part to picks among technology issues. Turning to the second quarter, the Fund's underweight positions in manufacturing and consumer goods and its overweight position in health care hampered returns. The Fund's underweight position in technology and construction, and greater-than-benchmark allocations in the financial and oil and gas sectors contributed t o relative returns. Stock selection was negative for the quarter, due in large part to picks among health care, financial, retail stores and technology issues.

In the third quarter of 2006, an underweight position in technology and an overweight position in oil and gas impeded portfolio performance. Overweight positions in financials and health care and an underweight position in metals and mining contributed to relative returns, but not enough to offset overall negative sector performance for the period. Finally, in the fourth quarter, sector selection detracted from relative returns, although overweight positions in the food and beverage and automotive sectors, in tandem with an underweight position in machinery, added to relative returns. These advances were offset, however, by the Fund's overweight positions in retail and transportation and its underweight position in services. Stock selection was also negative for the quarter. The Fund's investments in the oil and gas, utility and retail sectors added to relative returns, while its picks in the technology, health care and transportation sector s detracted.

What is your outlook? Market conditions were quite favorable as we moved into 2007. Historically low volatility, record-high profit margins (especially at the lower-quality end of the spectrum) and easy access to capital seemed to be positive factors for the market's benign environment. Historically speaking, each of these factors, however, has tended to be short-lived, and thus we are confident that the advantageous environment will soon end. While timing is always an undeterminable factor in such forecasts, we continue to seek investments that help us to reduce risk wherever possible.

MML Growth Equity Fund – Portfolio Manager Report (Continued)

MML Growth Equity Fund

Industry Table

(% of Net Assets) on 12/31/06

Retail	14.5	%
Pharmaceuticals	11.2	%
Computers & Information	5.6	%
Transportation	5.5	%
Financial Services	4.9	%
Energy	4.8	%
Commercial Services	4.3	%
Insurance	3.5	%
Electrical Equipment & Electronics	3.3	%
Prepackaged Software	3.2	%
Aerospace & Defense	3.0	%
Healthcare	2.9	%
Machinery & Components	2.4	%
Medical Supplies	2.3	%
Industrial — Diversified	2.1	%
Broadcasting, Publishing & Printing	1.9	%
Communications	1.9	%
Food Retailers	1.8	%
Foods	1.8	%
Telephone Utilities	1.7	%
Beverages	1.7	%
Banking, Savings & Loans	1.6	%
Entertainment & Leisure	1.4	%
Apparel, Textiles & Shoes	1.2	%
Tobacco	1.2	%
Metals & Mining	1.0	%
Cosmetics & Personal Care	0.8	%
Automotive & Parts	0.7	%
Home Construction, Furnishings & Appliances	0.7	%
Manufacturing	0.7	%
Data Processing & Preparation	0.6	%
Computers & Office Equipment	0.6	%
Chemicals	0.5	%
Information Retrieval Services	0.5	%
Computer Programming Services	0.4	%
Internet Content	0.3	%
Lodging	0.3	%
Containers	0.2	%
Restaurants	0.2	%
Building Materials & Construction	0.1	%
Computer Integrated Systems Design	0.1	%
Advertising	0.1	%
Industrial — Distribution	0.1	%
Computer Related Services	0.1	%
Toys, Games	0.1	%
Electric Utilities	0.1	%
Short-Term Investments and Other Assets and Liabilities	2.1	%
	100.0	%

*MML Growth Equity Fund* *Largest Stock Holdings (12/31/06)* Cisco Systems, Inc. Exxon Mobil Corp. FedEx Corp. Johnson & Johnson Lowe's Companies, Inc. Merck & Co., Inc. Pfizer, Inc. Starbucks Corp. The Home Depot, Inc. Wal-Mart Stores, Inc.

MML Growth Equity Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Growth Equity Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/3/99 -}_12/31/06
MML Growth Equity Fund		1.98	%		–0.29	%		–1.41	%
S&P 500 Index		15.78	%		6.19	%		2.41	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML OTC 100 Fund – Portfolio Manager Report

What is the investment objective of the MML OTC 100 Fund – and who is the Fund's sub-adviser? This Fund seeks to approximate, as closely as practicable (before fees and expenses), the total return of the 100 largest publicly traded over-the-counter common stocks. The Fund pursues this objective by investing at least 80% of its net assets in the equity securities of companies included in the NASDAQ 100 Index^®, which is generally recognized as representative of the over-the-counter market. The Fund's sub-adviser is Northern Trust Investments, N.A. (Northern).

How did the Fund perform during the 12 months ended December 31, 2006? The Fund returned 6.75%, nearly in line with the 6.79% return of the NASDAQ 100 Index. The NASDAQ 100 Index is a modified capitalization-weighted index composed of the 100 largest non-financial companies listed on the National Association of Securities Dealers Automated Quotations System ("NASDAQ").

During the third quarter, equity markets were helped by the 3.9% fall in oil prices as well as the continued decline in interest rates, as the 10-year U.S. Treasury yield slipped to about 4.6% by the end of the quarter. Broadly speaking, lower energy costs and interest rates were seen by equity investors as benefiting consumers and businesses. The Fed, however, showed less optimism about economic prospects, which helped to prompt its August decision to finally halt its tightening policy of the federal funds rate. This marked one of the most significant developments in the U.S. during the quarter.

What factors contributed to the Fund's performance? The NASDAQ 100 Index finished the first quarter of 2006 up 3.69%. The industrial sector advanced 16.84% for the quarter, while the information technology sector returned 2.67%. Consumer discretionary also made progress, with its return of 5.35%. The second quarter produced very different results for the NASDAQ 100 Index. It finished the period with a loss of 7.47%, following poor performance from the information technology sector, which lost 10.44%. The energy and health care sectors also lagged, with returns of –11.14% and –7.97%, respectively. On the upside, the materials sector advanced 10.75%.

Turning to the third quarter, the NASDAQ 100 Index returned 5.13%. The strongest performance and the Fund's main contribution came from the information technology sector, its largest sector position, which returned 8.42%. Conversely, the worst-performing sector was energy, which posted a return of –15.79%. The NASDAQ 100 Index finished the fourth quarter up 6.44%. The strongest performance for the period came from the telecommunication services sector, with its return of 17.31%. However, due to the Fund's small allocation to this sector, it was not a significant contributor to performance. The Fund's largest position, information technology, posted a return of 6.45%. Another notable contributor was the consumer discretionary sector, which returned 10.49%. The Fund's two fourth-quarter detractors were energy and consumer staples, although the Fund's small allocation to these sectors did not detract much from the Fund's performance.

What is your outlook? Although it is impossible to predict with any precision the direction that the equity markets will take in 2007, we do expect that many of the same forces that have influenced the markets over the past several years will continue to do the same this year. These factors include oil prices, inflation, geopolitical unrest and Fed policy. We are confident, however, that the Fund is positioned to pursue returns consistent with those of the NASDAQ 100 Index.

MML OTC 100 Fund – Portfolio Manager Report (Continued)

MML OTC 100 Fund

Industry Table

(% of Net Assets) on 12/31/06

Prepackaged Software	14.6	%
Computers & Information	12.9	%
Pharmaceuticals	11.3	%
Electrical Equipment & Electronics	10.8	%
Communications	9.7	%
Information Retrieval Services	5.6	%
Retail	5.3	%
Commercial Services	4.7	%
Broadcasting, Publishing & Printing	3.9	%
Food Retailers	2.4	%
Medical Supplies	1.7	%
Computer Integrated Systems Design	1.5	%
Computer Programming Services	1.4	%
Manufacturing	1.3	%
Transportation	1.2	%
Automotive & Parts	1.2	%
Telephone Utilities	1.0	%
Computer Related Services	1.0	%
Advertising	0.7	%
Data Processing & Preparation	0.7	%
Apparel, Textiles & Shoes	0.7	%
Lodging	0.7	%
Healthcare	0.6	%
Travel	0.5	%
Retail — Grocery	0.4	%
Machinery & Components	0.4	%
Internet Content	0.3	%
Communications Equipment	0.3	%
Energy	0.2	%
Short-Term Investments and Other Assets and Liabilities	3.0	%
	100.0	%

*MML OTC 100 Fund* *Largest Stock Holdings (12/31/06)* Amgen, Inc. Apple, Inc. Cisco Systems, Inc. Comcast Corp. Cl. A Google, Inc. Cl. A Intel Corp. Microsoft Corp. Oracle Corp. Qualc omm, Inc. Starbucks Corp.

MML OTC 100 Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML OTC 100 Fund and the NASDAQ 100 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/1/00 -}_12/31/06
MML OTC 100 Fund		6.75	%		2.04	%		–11.22	%
NASDAQ 100 Index		6.79	%		2.18	%		–10.83	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the NASDAQ 100 Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Small Cap Growth Equity Fund – Portfolio Manager Report

What is the investment objective of the MML Small Cap Growth Equity Fund – and who are the Fund's sub-advisers? This Fund seeks long-term capital appreciation by investing primarily in common stocks and equity securities of smaller companies that the Fund's sub-advisers believe offer potential for long-term growth. The Fund's sub-advisers are Wellington Management Company, LLP (Wellington) and Waddell & Reed Investment Management Company (Waddell & Reed). Each sub-adviser is responsible for a portion of the portfolio, but not necessarily equal weighted.

How did the Fund perform during the 12 months ended December 31, 2006? The Fund returned 9.02%, trailing the 18.37% return of the Russell 2000^® Index, a widely recognized, unmanaged index representative of common stocks of smaller capitalized U.S. companies.

What was the investment background during the period? U.S. equity markets generally moved higher in the first quarter, supported by strength in corporate earnings, a solidifying global economy and benign inflation. Small caps outperformed their larger-cap peers for the quarter – all sectors within the Russell 2000 Index (also, the "benchmark") had positive returns. Turning to the second quarter, domestic equity markets moved lower, driven by inflationary fears, higher interest rates and concerns about a slowing economy. Small-cap stocks underperformed both mid and large caps. From a sector perspective, performance within the benchmark was tilted in favor of defensively oriented sectors. The energy, utilities and consumer staples sectors performed best, whereas information technology, health care and consumer discretionary lagged the benchmar k.

Equity markets generally increased during the third quarter, as declining energy prices and a halt in interest rate hikes by the Federal Reserve ("Fed") offset a slowing housing market. Small-cap stocks outperformed mid caps and underperformed large caps, when measured using the Russell 2000, S&P 400^® Mid Cap and S&P 500^® Indexes. Domestic stocks forged higher once again during the fourth quarter, and many major indexes reached some notable milestones along the way. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance? The vast majority of the Fund's underperformance in the first quarter came as a result of poor stock selection in the industrials sector. While heavy machinery and general industrial stocks in the benchmark were reaching new highs, our portfolio suffered from across-the-board underperformance in transportation-related stocks. On the upside, the financials sector excelled in the first quarter, due to underexposure (relative to the benchmark) to banks and thrifts and overexposure to investment managers and stock exchanges. Turning to the second quarter, stock selection in the information technology sector hurt relative performance during the period. Conversely, strong stock selection in the consumer discretionary, industrials and health care sectors contributed to the Fund's results.

During the third quarter, the portfolio experienced broad-based strength in the information technology sector. Strong stock selection across the transportation/airline, commercial services and capital goods industrial sub-sectors also provided the Fund with strength during the period. Conversely, stock selection in industrials hampered the Fund's performance, as several transportation holdings fell due to concerns regarding a weakening U.S. economy. Within energy, lower oil prices and concerns of slowing demand negatively impacted some of the portfolio's holdings and lower-than-benchmark exposure to the financials sector also detracted from performance. Finally, in the fourth quarter, the portfolio had solid results in telecommunication services and industrials, and there were a number of strong performers in the consumer discretionary sector. Positive stock selection in the materials and information technology sectors also benefited the por tfolio as 2006 came to a close. On the other hand, our health care holdings underperformed, and a few of our specialty pharmaceutical companies faced new potential competition for key drugs.

What is your outlook? We are neither decidedly bullish nor bearish about the economy. We are, however, cautious about the prospects for growth in the first half of 2007 – which may force us to pare back our exposure to more economically sensitive sectors.

Although the market seems to teeter on every new macroeconomic data point, we expect our relative performance will be largely driven by stock selection as opposed to sector allocation. Consequently, we are focused on those companies that have unique business models, special market opportunities, and can deliver growth regardless of the economic cycle.

MML Small Cap Growth Equity Fund – Portfolio Manager Report (Continued)

MML Small Cap Growth Equity Fund

Industry Table

(% of Net Assets) on 12/31/06

Prepackaged Software	9.0	%
Commercial Services	8.6	%
Healthcare	5.4	%
Transportation	4.4	%
Energy	4.4	%
Medical Supplies	4.1	%
Retail	4.1	%
Entertainment & Leisure	3.6	%
Pharmaceuticals	3.6	%
Financial Services	3.5	%
Electrical Equipment & Electronics	3.4	%
Automotive & Parts	3.1	%
Data Processing & Preparation	2.8	%
Computers & Information	2.8	%
Heavy Machinery	2.5	%
Banking, Savings & Loans	2.5	%
Insurance	2.4	%
Apparel, Textiles & Shoes	2.1	%
Computer Related Services	1.6	%
Chemicals	1.5	%
Computer & Other Data Processing Service	1.5	%
Advertising	1.4	%
Foods	1.4	%
Telephone Utilities	1.3	%
Information Retrieval Services	1.3	%
Air Transportation	1.1	%
Machinery & Components	1.1	%
Home Construction, Furnishings & Appliances	1.1	%
Broadcasting, Publishing & Printing	1.0	%
Communications	1.0	%
Lodging	0.9	%
Restaurants	0.9	%
Metals & Mining	0.8	%
Household Products	0.7	%
Aerospace & Defense	0.6	%
Computer Integrated Systems Design	0.5	%
Computer Maintenance & Repair	0.4	%
Cosmetics & Personal Care	0.2	%
Electric Utilities	0.2	%
Internet Software	0.2	%
Consumer Services	0.1	%
Building Materials & Construction	0.1	%
Short-Term Investments and Other Assets and Liabilities	6.8	%
	100.0	%

*MML Small Cap Growth Equity Fund* *Largest Stock Holdings (12/31/06)* Allscripts Healthcare Solutions, Inc. Blackbaud, Inc. Bucyrus International, Inc. Cl. A FactSet Research Systems, Inc. Gaylord Entertainment Healthways, Inc. ITT Educational Services, Inc. Kansas City Southern LKQ Corp. iShares Russell 2000 Growth Index Fund

MML Small Cap Growth Equity Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Small Cap Growth Equity Fund and the Russell 2000 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/3/99 -}_12/31/06
MML Small Cap Equity Fund		9.02	%		8.68	%		8.65	%
Russell 2000 Index		18.37	%		11.39	%		9.50	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the Russell 2000 Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Emerging Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Emerging Growth Fund – and who is the Fund's sub-adviser? This Fund seeks capital appreciation by investing primarily in smaller, rapidly growing emerging companies – generally in industry segments experiencing rapid growth, and often including technology and technology-related stocks. The Fund will normally invest at least 80% of its net assets in equity securities (primarily common stocks) of these emerging growth companies in both the U.S. and abroad. The Fund's sub-advisers are Delaware Management Company (Delaware) and Insight Capital Management, Inc. (Insight).

How did the Fund perform during the 12 months ended December 31, 2006? The Fund returned 5.36%, trailing the 18.37% return of the Russell 2000^® Index, a widely recognized, unmanaged index representative of common stocks of smaller capitalized U.S. companies.

What was the investment backdrop during the period? The second quarter saw a turnaround in the fortunes of the equity markets, as investor uncertainty (caused in part by global unrest and rising oil prices) led many of the markets lower. In fact, the Dow Jones Industrial Average^SM ("the Dow") was the only domestic equity benchmark to post a return in positive territory, advancing 0.37%. The investor pessimism that had defined markets from late March of 2006 began to give way toward the end of the third quarter of the year, as commodity prices experienced a significant drop and the Federal Reserve ("Fed") finally paused its regimen of successive rate hikes that continued for more than two years. Large-cap stocks were the primary beneficiaries, posting mid-single-digit returns, and the Dow came within a whisper of an all-time high. At th e lower end of the capitalization spectrum, however, investors were slower to forget the risk aversion that had contained them since March. As such, most small- and mid-cap indexes remained in check.

The rally in equities that began in August continued in the fourth quarter, as mounting evidence indicated that the threat of inflation had diminished and that interest rates and commodity prices would remain stable. Encouraged by the prospect of continued economic growth, investors drove stocks up across nearly the entire capitalization and style spectrums. Value outperformed growth universally. Large caps, which had been the early beneficiaries as investors shed their risk aversion in August, stepped aside in October for small caps, which rallied fiercely and led all market cap segments for the quarter. Among small-cap growth stocks, gains were widespread, with every sector of the Russell 2000^® Growth Index posting returns in excess of 5%.

What factors contributed to the Fund's performance? During the first quarter, the Fund benefited from favorable stock selection in the energy sector. Our underweight position in metals and mining firms hampered the Fund during the period, as these cyclical businesses – which excelled throughout 2005 – were still selling at very high valuation levels (relative to long-term averages) as 2006 began. Turning to the second quarter, our best-performing stocks included Lifecell, a manufacturer of artificial skin, and J2 Global, which provides Internet fax services to individuals and small offices. Conversely, a number of our worst performers during this period were in the technology sector.

In the third quarter of 2006, the Fund's financials, consumer discretionary and consumer services holdings were generally beneficial – while its investments in the industrials and energy sector impeded performance. Meanwhile, our information technology holdings produced mixed results. Sector weightings during this time were generally positive for the Fund, with an overweight position in consumer nondurables being the primary contributor. In the fourth quarter, the Fund's industrial holdings were generally beneficial, while consumer discretionary, consumer staples and financials holdings detracted. Information technology investments once again produced mixed results. Overall, stock selection was neutral. Positive contributions from the financial, consumer nondurables and business services sectors were negated by relative weakness in the technology and basic industry/capital goods sectors. A slightly negative contribution from overall sec tor allocations further hindered relative performance.

What is your outlook? Looking into 2007, we believe the portfolio is well positioned to capitalize on continued economic growth. In the absence of a sudden, unexpected spike in inflation and energy prices, we expect consumer-related stocks to continue to do well. Additionally, major new product launches from some of the largest technology firms, coupled with the overdue need by much of corporate America to replace aging infrastructure, should bode well for the technology sector. In a slower growth environment, it is our expectation that companies possessing sustainable competitive advantages may be able to deliver growth in excess of the overall market – and we plan to maintain our focus on finding and retaining these market leaders across all market sectors.

MML Emerging Growth Fund – Portfolio Manager Report (Continued)

MML Emerging Growth Fund

Industry Table

(% of Net Assets) on 12/31/06

Apparel, Textiles & Shoes	9.8	%
Pharmaceuticals	8.2	%
Retail	7.5	%
Commercial Services	7.5	%
Electrical Equipment & Electronics	6.7	%
Insurance	5.5	%
Computers & Information	4.8	%
Information Retrieval Services	4.6	%
Prepackaged Software	4.4	%
Communications	4.4	%
Metals & Mining	3.8	%
Forest Products & Paper	3.6	%
Banking, Savings & Loans	3.1	%
Automotive & Parts	2.6	%
Medical Supplies	2.4	%
Home Construction, Furnishings & Appliances	2.1	%
Air Transportation	1.8	%
Restaurants	1.6	%
Financial Services	1.6	%
Energy	1.4	%
Telephone Utilities	1.4	%
Machinery & Components	1.4	%
Chemicals	1.4	%
Entertainment & Leisure	1.4	%
Healthcare	1.0	%
Transportation	0.7	%
Consumer Services	0.7	%
Environmental Controls	0.6	%
Building Materials & Construction	0.5	%
Heavy Machinery	0.3	%
Advertising	0.3	%
Data Processing & Preparation	0.3	%
Cosmetics & Personal Care	0.2	%
Short-Term Investments and Other Assets and Liabilities	2.4	%
	100.0	%

*MML Emerging Growth Fund* *Largest Stock Holdings (12/31/06)* CDC Corp. Cl. A Crocs, Inc. Force Protection, Inc. Guess?, Inc. PeopleSupport, Inc. Polycom, Inc. Priceline.com, Inc. Rock-Tenn Co. Cl. A Sigma Designs, Inc. WellCare Health Plans, Inc.

MML Emerging Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Emerging Growth Fund and the Russell 2000 Index.

MML Series Investment Fund
Total Returns

	_{One Year}_{1/1/06 -}_12/31/06			_{Five Year}_Average_Annual_{1/1/02 -}_12/31/06			_Since_Inception_Average_Annual_{5/1/00 -}_12/31/06
MML Emerging Growth Fund		5.36	%		0.45	%		–6.71	%
Russell 2000 Index		18.37	%		11.39	%		8.22	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Large Cap Value Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 95.9%
COMMON STOCK — 95.9%
Advertising — 0.2%
WPP Group PLC Sponsored ADR (United Kingdom)		7,700	$	521,598
Automotive & Parts — 2.0%
Harley-Davidson, Inc.(a)		60,100		4,235,247
Banking, Savings & Loans — 12.7%
Commerce Bancorp, Inc.(a)		35,600		1,255,612
HSBC Holdings PLC		300,993		5,495,752
JP Morgan Chase & Co.		183,216		8,849,333
Mellon Financial Corp.		23,400		986,310
State Street Corp.		5,800		391,152
Wachovia Corp.		90,879		5,175,559
Wells Fargo & Co.		152,100		5,408,676
				27,562,394
Beverages — 2.0%
Diageo PLC Sponsored ADR (United Kingdom)		34,900		2,767,919
Heineken Holding NV Cl. A		38,550		1,560,125
				4,328,044
Broadcasting, Publishing & Printing — 5.0%
Comcast Corp. Special, Cl. A(b)		174,100		7,291,308
Gannett Co., Inc.		8,400		507,864
Lagardere S.C.A. SA		22,200		1,780,365
Liberty Media Holding Corp. Capital Cl. A(b)		6,240		611,395
Liberty Media Holding Corp. Interactive Cl. A(b)		31,000		668,670
				10,859,602
Building Materials & Construction — 1.5%
Martin Marietta Materials, Inc.		17,000		1,766,470
Vulcan Materials Co.(a)		16,300		1,464,881
				3,231,351
Commercial Services — 4.5%
Apollo Group, Inc. Cl. A(b)		13,800		537,786
Block (H&R), Inc.		96,300		2,218,752
Cosco Pacific Ltd.		220,600		516,886
Dun & Bradstreet Corp.(b)		11,450		947,946
Iron Mountain, Inc.(a) (b)		65,400		2,703,636
Moody's Corp.		41,800		2,886,708
				9,811,714

	Number of Shares		Market Value
Communications — 1.2%
Nokia Oyj Sponsored ADR (Finland)		24,400	$	495,808
NTL, Inc.		39,997		1,009,524
SK Telecom Co. Ltd. ADR (South Korea)(a)		42,800		1,133,344
				2,638,676
Computer Related Services — 0.2%
IAC/InterActiveCorp(a) (b)		12,750		473,790
Computers & Information — 0.6%
Dell, Inc.(b)		53,500		1,342,315
Computers & Office Equipment — 0.6%
Hewlett-Packard Co.		33,900		1,396,341
Containers — 2.0%
Sealed Air Corp.		67,300		4,369,116
Cosmetics & Personal Care — 1.5%
Avon Products, Inc.		25,400		839,216
The Procter & Gamble Co.		36,300		2,333,001
				3,172,217
Energy — 11.8%
BHP Billiton PLC		23,200		429,461
Canadian Natural Resources Ltd.		15,600		830,388
ConocoPhillips Co.		135,460		9,746,347
Devon Energy Corp.(a)		68,500		4,594,980
EOG Resources, Inc.		58,500		3,653,325
Occidental Petroleum Corp.		93,600		4,570,488
Transocean, Inc.(b)		21,900		1,771,491
				25,596,480
Entertainment & Leisure — 1.7%
News Corp., Inc. Cl. A		170,250		3,656,970
Financial Services — 11.7%
American Express Co.		162,500		9,858,875
Ameriprise Financial, Inc.		45,580		2,484,110
Berkshire Hathaway, Inc. Cl. A(b)		61		6,709,390
Citigroup, Inc.		86,900		4,840,330
Morgan Stanley		18,300		1,490,169
				25,382,874
Foods — 0.5%
The Hershey Co.(a)		23,900		1,190,220
Healthcare — 2.7%
Caremark Rx, Inc.(a)		48,500		2,769,835
Express Scripts, Inc.(b)		11,100		794,760

	Number of Shares		Market Value
UnitedHealth Group, Inc.		41,500	$	2,229,795
				5,794,390
Household Products — 0.2%
Hunter Douglas NV		5,303		425,552
Industrial – Diversified — 4.2%
Tyco International Ltd.		299,343		9,100,027
Insurance — 10.9%
Ambac Financial Group, Inc.		1,400		124,698
American International Group, Inc.		134,050		9,606,023
Aon Corp.		38,900		1,374,726
Chubb Corp.		10,600		560,846
Loews Corp.		108,400		4,495,348
Markel Corp.(b)		400		192,040
Principal Financial Group, Inc.		11,600		680,920
Progressive Corp.		188,500		4,565,470
Sun Life Financial, Inc.(a)		6,740		285,439
Transatlantic Holdings, Inc.		26,613		1,652,667
				23,538,177
Metals & Mining — 0.4%
China Coal Energy Co.(b)		742,700		482,400
Rio Tinto PLC		8,300		441,850
				924,250
Pharmaceuticals — 0.9%
Cardinal Health, Inc.		29,600		1,907,128
Prepackaged Software — 2.2%
Microsoft Corp.		160,900		4,804,474
Retail — 7.6%
Amazon.com, Inc.(a) (b)		36,100		1,424,506
Bed Bath & Beyond, Inc.(b)		29,700		1,131,570
Carmax, Inc.(b)		11,300		606,019
Costco Wholesale Corp.		149,300		7,893,491
Lowe's Companies, Inc.		31,500		981,225
Sears Holdings Corp.(a) (b)		3,100		520,583
Wal-Mart Stores, Inc.		84,400		3,897,592
				16,454,986
Telephone Utilities — 1.1%
Sprint Nextel Corp.		124,000		2,342,360
Tobacco — 4.5%
Altria Group, Inc.		112,800		9,680,496

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Large Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Transportation — 1.4%
China Merchants Holdings International Co. Ltd.		316,268	$	1,298,154
Kuehne & Nagel International AG		8,700		631,775
United Parcel Service, Inc. Cl. B		13,300		997,234
				2,927,163
Travel — 0.1%
Expedia, Inc.(b)		13,350		280,083
TOTAL EQUITIES (Cost $161,890,596)				207,948,035
	Principal Amount
SHORT-TERM INVESTMENTS — 12.4%
Cash Equivalents — 7.6%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	409,491		409,491
American Beacon Money Market Fund(c)		141,421		141,421
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		598,487		598,487
Bank of America 5.270% 01/09/2007		314,993		314,993
Bank of America 5.310% 03/08/2007		314,993		314,993
Bank of America 5.320% 02/16/2007		94,498		94,498
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		188,996		188,996
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		629,987		629,987
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		409,491		409,491
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		157,497		157,497
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		314,993		314,993
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		314,993		314,993

	Principal Amount		Market Value
Barclays Eurodollar Time Deposit 5.320% 02/13/2007	$	94,498	$	94,498
BGI Institutional Money Market Fund(c)		297,572		297,572
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		472,490		472,490
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		157,497		157,497
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		157,497		157,497
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		579,588		579,588
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		472,490		472,490
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		157,497		157,497
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		314,993		314,993
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		314,993		314,993
Dreyfus Cash Management Plus Money Market Fund(c)		112,515		112,515
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		52,758		52,758
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		82,198		82,198
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		314,993		314,993
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		125,997		125,997
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		472,490		472,490
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		472,490		472,490

	Principal Amount		Market Value
Freddie Mac Discount Note 5.231% 01/23/2007	$	125,359	$	125,359
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		157,497		157,497
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		282,184		282,184
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		440,991		440,991
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		314,993		314,993
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		251,995		251,995
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		472,490		472,490
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		188,996		188,996
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		787,483		787,483
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		283,494		283,494
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		314,993		314,993
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		466,190		466,190
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		314,993		314,993
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		62,999		62,999
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		157,497		157,497
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		251,995		251,995

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Large Cap Value Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007	$	629,987	$	629,987
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		472,490		472,490
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		125,997		125,997
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,086,610		1,086,610
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		163,797		163,797
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		377,992		377,992
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		188,996		188,996
				16,462,414
Repurchase Agreement — 4.8%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		10,468,807		10,468,807
TOTAL SHORT-TERM INVESTMENTS (Cost $26,931,221)				26,931,221
TOTAL INVESTMENTS — 108.3% (Cost $188,821,817)(f)				234,879,256
Other Assets/ (Liabilities) — (8.3%)				(18,058,536	)
NET ASSETS — 100.0%			$	216,820,720

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Denotes all or a portion of security on loan. (Note 2).

(b) Non-income producing security.

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $10,472,878. Collateralized by a U.S. Government Agency obligation with a rate of 4.791%, maturity date of 09/01/2034, and an aggregate market value, including accrued interest, of $10,992,247.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 97.7%
COMMON STOCK — 97.7%
Advertising — 0.2%
Interpublic Group of Companies, Inc.(a) (b)		13,819	$	169,145
Monster Worldwide, Inc.(a)		4,076		190,105
Omnicom Group, Inc.		5,306		554,689
				913,939
Aerospace & Defense — 2.3%
Boeing Co.		24,411		2,168,673
General Dynamics Corp.		12,414		922,981
Goodrich Corp.		3,939		179,421
Honeywell International, Inc.		25,190		1,139,596
Lockheed Martin Corp.		10,940		1,007,246
Northrop Grumman Corp.		10,690		723,713
Raytheon Co.		13,788		728,006
Rockwell Collins, Inc.		5,368		339,741
United Technologies Corp.		31,122		1,945,747
				9,155,124
Air Transportation — 0.1%
Southwest Airlines Co.		24,140		369,825
Apparel, Textiles & Shoes — 0.6%
Coach, Inc.(a)		11,200		481,152
The Gap, Inc.		16,545		322,628
Jones Apparel Group, Inc.		3,696		123,557
Limited Brands, Inc.		10,430		301,844
Liz Claiborne, Inc.		3,174		137,942
Nike, Inc. Cl. B		5,881		582,395
Nordstrom, Inc.		6,770		334,032
VF Corp.		2,851		234,010
				2,517,560
Automotive & Parts — 0.6%
AutoNation, Inc.(a)		4,768		101,654
Ford Motor Co.(b)		57,867		434,581
General Motors Corp.(b)		17,330		532,378
Genuine Parts Co.		5,429		257,497
The Goodyear Tire & Rubber Co.(a) (b)		5,565		116,809
Harley-Davidson, Inc.		8,222		579,404
Paccar, Inc.		7,624		494,798
				2,517,121
Banking, Savings & Loans — 9.2%
Bank of America Corp.		139,155		7,429,485
The Bank of New York Co., Inc.		23,445		923,030

	Number of Shares		Market Value
BB&T Corp.		16,483	$	724,098
Capital One Financial Corp.		13,715		1,053,586
Comerica, Inc.		5,069		297,449
Commerce Bancorp, Inc.(b)		5,700		201,039
Compass Bancshares, Inc.		3,800		226,670
Fannie Mae		29,776		1,768,397
Fifth Third Bancorp		17,122		700,803
First Horizon National Corp.		3,900		162,942
Freddie Mac		21,286		1,445,319
JP Morgan Chase & Co.		106,747		5,155,880
KeyCorp		12,610		479,558
M&T Bank Corp.		2,400		293,184
Marshall and Ilsley Corp.		7,500		360,825
Mellon Financial Corp.		12,694		535,052
National City Corp.(b)		18,298		668,975
Northern Trust Corp.		6,888		418,033
Regions Financial Corp.		22,389		837,349
SLM Corp.		12,542		611,673
Sovereign Bancorp, Inc.(b)		11,255		285,764
State Street Corp.		10,122		682,628
SunTrust Banks, Inc.		11,190		944,996
Synovus Financial Corp.		10,163		313,325
U.S. Bancorp		54,632		1,977,132
Wachovia Corp.		58,851		3,351,564
Washington Mutual, Inc.		29,601		1,346,550
Wells Fargo & Co.		103,558		3,682,522
Zions Bancorp		3,193		263,231
				37,141,059
Beverages — 2.0%
Anheuser-Busch Cos., Inc.		23,687		1,165,400
Brown-Forman Corp. Cl. B		2,480		164,275
The Coca-Cola Co.		62,691		3,024,841
Coca-Cola Enterprises, Inc.		8,474		173,039
Constellation Brands, Inc. Cl. A(a) (b)		6,400		185,728
Molson Coors Brewing Co. Cl. B		1,389		106,175
The Pepsi Bottling Group, Inc.		4,338		134,088
PepsiCo, Inc.		50,708		3,171,785
				8,125,331
Broadcasting, Publishing & Printing — 2.5%
CBS Corp. Cl. B(b)		24,014		748,757
Clear Channel Communications, Inc.		15,249		541,949
Comcast Corp. Cl. A(a)		64,318		2,722,581

	Number of Shares		Market Value
The DIRECTV Group, Inc.(a)		23,900	$	596,066
Dow Jones & Co., Inc.(b)		2,026		76,988
Gannett Co., Inc.		7,270		439,544
The McGraw-Hill Companies, Inc.		10,760		731,895
Meredith Corp.		1,144		64,464
New York Times Co. Cl. A(b)		4,665		113,639
The Scripps (E.W.) Co. Cl. A		2,700		134,838
Time Warner, Inc.		125,008		2,722,674
Tribune Co.(b)		6,009		184,957
Univision Communications, Inc. Cl. A(a) (b)		7,400		262,108
Viacom, Inc. Cl. B(a)		21,814		895,028
				10,235,488
Building Materials & Construction — 0.2%
Masco Corp.(b)		12,267		366,415
Vulcan Materials Co.(b)		3,010		270,509
				636,924
Chemicals — 1.3%
Air Products & Chemicals, Inc.		6,758		474,952
Dow Chemical Co.		29,468		1,176,952
Du Pont (E.I.) de Nemours & Co.		28,404		1,383,559
Eastman Chemical Co.		2,500		148,275
Hercules, Inc.(a)		3,506		67,701
International Flavors & Fragrances, Inc.		2,546		125,161
Monsanto Co.		16,670		875,675
PPG Industries, Inc.		5,189		333,186
Praxair, Inc.		10,064		597,097
Rohm & Haas Co.(b)		4,440		226,973
				5,409,531
Commercial Services — 1.4%
Allied Waste Industries, Inc.(a)		7,660		94,141
Apollo Group, Inc. Cl. A(a) (b)		4,388		171,000
Block (H&R), Inc.		9,848		226,898
Cintas Corp.(b)		4,190		166,385
Convergys Corp.(a)		4,516		107,390
Donnelley (R.R.) & Sons Co.		6,722		238,900
eBay, Inc.(a)		36,123		1,086,219
Ecolab, Inc.(b)		5,516		249,323
Equifax, Inc.		3,859		156,675

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Fluor Corp.(b)		2,727	$	222,660
Moody's Corp.		7,292		503,586
Paychex, Inc.		10,597		419,005
PerkinElmer, Inc.		4,008		89,098
Public Storage, Inc.		3,220		313,950
Quest Diagnostics		5,028		266,484
Robert Half International, Inc.(b)		5,280		195,994
Ryder System, Inc.		1,982		101,201
Waste Management, Inc.		16,653		612,331
Western Union		23,533		527,610
				5,748,850
Communications — 1.2%
ADC Telecommunications, Inc.(a)		3,921		56,972
Alcatel-Lucent Sponsored ADR (France)		1		14
Avaya, Inc.(a)		13,276		185,598
Ciena Corp.(a)		2,748		76,147
Citizens Communications Co.		9,901		142,277
L-3 Communications Holdings, Inc.		3,800		310,764
Motorola, Inc.		75,309		1,548,353
Network Appliance, Inc.(a)		11,420		448,578
Qualcomm, Inc.		50,760		1,918,220
Tellabs, Inc.(a)		13,812		141,711
				4,828,634
Computer Integrated Systems Design — 0.3%
Autodesk, Inc.(a)		7,080		286,457
Computer Sciences Corp.(a)		5,387		287,504
Sun Microsystems, Inc.(a)		107,908		584,861
Teradyne, Inc.(a) (b)		6,160		92,154
Unisys Corp.(a)		11,615		91,062
				1,342,038
Computer Programming Services — 0.1%
Cognizant Technology Solutions Corp. Cl. A(a)		4,300		331,788
VeriSign, Inc.(a)		7,900		189,995
				521,783
Computer Related Services — 0.1%
IAC/InterActiveCorp(a) (b)		6,900		256,404
Computers & Information — 4.0%
Apple, Inc.(a)		26,152		2,218,736
Cisco Systems, Inc.(a)		187,673		5,129,103
Comverse Technology, Inc.(a)		6,322		133,457
Dell, Inc.(a)		69,847		1,752,461
EMC Corp.(a)		70,632		932,342

	Number of Shares		Market Value
International Business Machines Corp.		46,765	$	4,543,220
International Game Technology		10,416		481,219
Jabil Circuit, Inc.		5,678		139,395
Lexmark International, Inc.(a)		3,097		226,700
SanDisk Corp.(a)		6,936		298,456
Solectron Corp.(a)		29,681		95,573
Symbol Technologies, Inc.		8,060		120,416
				16,071,078
Computers & Office Equipment — 1.2%
Electronic Data Systems Corp.		15,871		437,246
Hewlett-Packard Co.		84,215		3,468,816
Pitney Bowes, Inc.		6,802		314,184
Xerox Corp.(a)		29,814		505,347
				4,725,593
Containers — 0.2%
Ball Corp.		3,220		140,392
Bemis Co., Inc.		3,366		114,377
Pactiv Corp.(a)		4,359		155,573
Sealed Air Corp.		2,591		168,208
Temple-Inland, Inc.		3,376		155,397
				733,947
Cosmetics & Personal Care — 2.2%
Avon Products, Inc.		13,756		454,498
Colgate-Palmolive Co.		15,877		1,035,815
The Estee Lauder Cos., Inc. Cl. A(b)		3,900		159,198
Kimberly-Clark Corp.		14,107		958,571
The Procter & Gamble Co.		97,586		6,271,852
				8,879,934
Data Processing & Preparation — 0.6%
Affiliated Computer Services, Inc. Cl. A(a)		3,600		175,824
Automatic Data Processing, Inc.		17,104		842,372
First Data Corp.		23,533		600,562
Fiserv, Inc.(a)		5,421		284,169
IMS Health, Inc.		6,224		171,036
NCR Corp.(a)		5,500		235,180
				2,309,143
Electric Utilities — 3.1%
AES Corp.(a)		20,349		448,492
Allegheny Energy, Inc.(a)		5,020		230,468
Ameren Corp.(b)		6,281		337,478
American Electric Power Co., Inc.		12,257		521,903
CenterPoint Energy, Inc.(b)		10,063		166,845

	Number of Shares		Market Value
CMS Energy Corp.(a) (b)		6,938	$	115,865
Consolidated Edison, Inc.		7,550		362,929
Constellation Energy Group, Inc.		5,525		380,507
Dominion Resources, Inc.		10,878		912,012
DTE Energy Co.(b)		5,537		268,046
Duke Energy Corp.		38,573		1,281,009
Edison International		10,030		456,164
Entergy Corp.		6,360		587,155
Exelon Corp.		20,536		1,270,973
FirstEnergy Corp.		10,157		611,553
FPL Group, Inc.(b)		12,372		673,284
NiSource, Inc.		8,346		201,139
PG&E Corp.		10,721		507,425
Pinnacle West Capital Corp.		3,200		162,048
PPL Corp.		11,678		418,540
Progress Energy, Inc.		7,772		381,450
Public Service Enterprise Group, Inc.		7,898		524,269
Southern Co.		22,787		839,929
Teco Energy, Inc.(b)		6,761		116,492
TXU Corp.		14,154		767,288
				12,543,263
Electrical Equipment & Electronics — 5.7%
Advanced Micro Devices, Inc.(a)		15,260		310,541
Altera Corp.(a)		11,220		220,810
American Power Conversion Corp.		5,230		159,986
Analog Devices, Inc.		10,870		357,297
Broadcom Corp. Cl. A(a)		14,347		463,552
Emerson Electric Co.		25,114		1,106,774
General Electric Co.		317,335		11,808,035
Intel Corp.		177,287		3,590,062
JDS Uniphase Corp.(a) (b)		6,998		116,587
Johnson Controls, Inc.		5,950		511,224
KLA-Tencor Corp.(b)		6,106		303,774
Linear Technology Corp.		9,230		279,854
LSI Logic Corp.(a)		12,428		111,852
Maxim Integrated Products, Inc.		9,860		301,913
Micron Technology, Inc.(a)		22,417		312,941
Molex, Inc.		4,590		145,182
National Semiconductor Corp.		9,396		213,289
Novellus Systems, Inc.(a) (b)		4,050		139,401
Nvidia Corp.(a)		10,800		399,708
PMC-Sierra, Inc.(a) (b)		6,189		41,528
QLogic Corp.(a)		4,900		107,408
Rockwell Automation, Inc.		5,568		340,093

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Sanmina-SCI Corp.(a)		18,052	$	62,279
Texas Instruments, Inc.		47,126		1,357,229
Xilinx, Inc.		10,411		247,886
				23,009,205
Energy — 9.7%
Anadarko Petroleum Corp.		14,144		615,547
Apache Corp.		10,100		671,751
Ashland, Inc.		2,003		138,568
BJ Services Co.		9,400		275,608
Chesapeake Energy Corp.(b)		11,600		336,980
Chevron Corp.		67,566		4,968,128
ConocoPhillips Co.		50,690		3,647,146
Devon Energy Corp.		13,570		910,276
Dynegy, Inc. Cl. A		11,109		80,429
El Paso Corp.		21,346		326,167
EOG Resources, Inc.		7,400		462,130
Exxon Mobil Corp.		179,536		13,757,844
Halliburton Co.		31,730		985,217
Hess Corp.		8,317		412,274
KeySpan Corp.		5,380		221,548
Kinder Morgan, Inc.		3,290		347,918
Marathon Oil Corp.		10,996		1,017,130
Murphy Oil Corp.(b)		5,600		284,760
Nabors Industries Ltd.(a) (b)		9,730		289,759
National Oilwell Varco, Inc.(a)		5,500		336,490
Nicor, Inc.		1,489		69,685
Noble Corp.		4,240		322,876
Occidental Petroleum Corp.		26,508		1,294,386
Peabody Energy Corp.		8,100		327,321
Peoples Energy Corp.		970		43,233
Questar Corp.		2,600		215,930
Rowan Companies, Inc.(b)		3,421		113,577
Schlumberger Ltd.		36,378		2,297,634
Sempra Energy		8,117		454,309
Sunoco, Inc.		4,086		254,803
Transocean, Inc.(a)		8,998		727,848
Valero Energy Corp.		18,800		961,808
Weatherford International Ltd.		10,638		444,562
The Williams Cos., Inc.		18,318		478,466
Xcel Energy, Inc.(b)		12,672		292,216
XTO Energy, Inc.		11,199		526,913
				38,911,237
Entertainment & Leisure — 1.1%
Brunswick Corp.		2,939		93,754
Harrah's Entertainment, Inc.		5,723		473,407
News Corp., Inc. Cl. A		71,800		1,542,264
The Walt Disney Co.		64,232		2,201,231
				4,310,656

	Number of Shares		Market Value
Financial Services — 6.6%
American Express Co.		37,308	$	2,263,476
Ameriprise Financial, Inc.		7,521		409,895
Apartment Investment & Management Co. Cl. A		3,100		173,662
Archstone-Smith Trust REIT		6,600		384,186
The Bear Stearns Cos., Inc.		3,658		595,449
Chicago Mercantile Exchange Holdings, Inc.		1,100		560,725
CIT Group, Inc.		6,100		340,197
Citigroup, Inc.		151,990		8,465,843
Countrywide Financial Corp.		18,754		796,107
E*TRADE Financial Corp.(a)		13,100		293,702
Federated Investors, Inc. Cl. B		2,700		91,206
Fidelity National Information Services, Inc.		5,000		200,450
Franklin Resources, Inc.		5,028		553,935
The Goldman Sachs Group, Inc.		13,309		2,653,149
Huntington Bancshares, Inc.		7,434		176,558
Janus Capital Group, Inc.		6,350		137,097
Legg Mason, Inc.		3,985		378,774
Lehman Brothers Holdings, Inc.		16,544		1,292,417
Merrill Lynch & Co., Inc.		27,269		2,538,744
Morgan Stanley		32,991		2,686,457
PNC Financial Services Group, Inc.		9,049		669,988
The Charles Schwab Corp.		31,761		614,258
T. Rowe Price Group, Inc.		8,100		354,537
				26,630,812
Food Retailers — 0.3%
Starbucks Corp.(a)		23,198		821,673
SuperValu, Inc.		6,495		232,196
				1,053,869
Foods — 1.5%
Archer-Daniels-Midland Co.		20,161		644,346
Campbell Soup Co.		6,702		260,641
ConAgra Foods, Inc.		15,672		423,144
Dean Foods Co.(a)		4,100		173,348
General Mills, Inc.		10,808		622,541
Heinz (H. J.) Co.		10,222		460,092
The Hershey Co.(b)		5,344		266,131
Kellogg Co.		7,664		383,660
The Kroger Co.		22,218		512,569
McCormick & Co., Inc.		4,000		154,240

	Number of Shares		Market Value
Safeway, Inc.		13,660	$	472,090
Sara Lee Corp.		23,365		397,906
Sysco Corp.		19,030		699,543
Tyson Foods, Inc. Cl. A(b)		8,200		134,890
Wrigley (Wm.) Jr. Co.		6,767		349,989
				5,955,130
Forest Products & Paper — 0.4%
International Paper Co.		14,020		478,082
MeadWestvaco Corp.		5,601		168,366
Plum Creek Timber Co., Inc.		5,500		219,175
Weyerhaeuser Co.		7,590		536,234
				1,401,857
Healthcare — 1.1%
Caremark Rx, Inc.		13,100		748,141
Coventry Health Care, Inc.(a)		4,985		249,499
Express Scripts, Inc.(a)		4,300		307,880
Health Management Associates, Inc. Cl. A		7,400		156,214
Humana, Inc.(a)		5,103		282,247
Laboratory Corp. of America Holdings(a) (b)		4,000		293,880
Manor Care, Inc.		2,332		109,417
Tenet Healthcare Corp.(a) (b)		15,159		105,658
UnitedHealth Group, Inc.		41,380		2,223,347
				4,476,283
Home Construction, Furnishings & Appliances — 0.4%
Centex Corp.(b)		3,746		210,787
D.R. Horton, Inc.		8,400		222,516
Harman International Industries, Inc.		2,000		199,820
KB Home		2,442		125,226
Leggett & Platt, Inc.		5,550		132,645
Lennar Corp. Cl. A		4,400		230,824
Pulte Homes, Inc.		6,644		220,049
Whirlpool Corp.		2,442		202,735
				1,544,602
Household Products — 0.4%
The Black & Decker Corp.		2,250		179,933
The Clorox Co.		4,670		299,581
Fortune Brands, Inc.(b)		4,680		399,625
Newell Rubbermaid, Inc.		8,635		249,983
The Sherwin-Williams Co.		3,429		218,016
Snap-on, Inc.		1,853		88,277
The Stanley Works		2,305		115,918
				1,551,333

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Industrial – Distribution — 0.0%
W.W. Grainger, Inc.		2,279	$	159,393
Industrial – Diversified — 1.7%
3M Co.		23,172		1,805,794
Cooper Industries Ltd. Cl. A		2,814		254,470
Corning, Inc.(a)		47,891		896,041
Danaher Corp.		7,310		529,536
Eaton Corp.		4,594		345,193
Illinois Tool Works, Inc.		13,038		602,225
ITT Industries, Inc.		5,774		328,079
Textron, Inc.		3,932		368,704
Tyco International Ltd.		61,974		1,884,010
				7,014,052
Information Retrieval Services — 1.1%
Google, Inc. Cl. A(a)		6,488		2,987,594
Juniper Networks, Inc.(a)		17,800		337,132
Yahoo!, Inc.(a)		38,216		976,037
				4,300,763
Insurance — 5.4%
ACE Ltd.		10,000		605,700
Aetna, Inc.		16,844		727,324
AFLAC, Inc.		15,320		704,720
Allstate Corp.		19,404		1,263,394
Ambac Financial Group, Inc.		3,275		291,704
American International Group, Inc.		79,832		5,720,761
Aon Corp.		9,646		340,890
Chubb Corp.		12,646		669,100
Cigna Corp.		3,440		452,601
Cincinnati Financial Corp.		5,382		243,858
Genworth Financial, Inc. Cl. A		13,700		468,677
The Hartford Financial Services Group, Inc.		9,358		873,195
Lincoln National Corp.		8,880		589,632
Loews Corp.		13,874		575,355
Marsh & McLennan Cos., Inc.		16,942		519,442
MBIA, Inc.		4,175		305,026
Metlife, Inc.		23,332		1,376,821
MGIC Investment Corp.		2,589		161,916
Principal Financial Group, Inc.(b)		8,236		483,453
Progressive Corp.		23,692		573,820
Prudential Financial, Inc.		14,900		1,279,314
Safeco Corp.		3,659		228,870
St. Paul Travelers Cos.		21,263		1,141,610
Torchmark Corp.		3,126		199,314
UnumProvident Corp.		10,070		209,255
WellPoint, Inc.(a)		19,087		1,501,956

	Number of Shares		Market Value
XL Capital Ltd. Cl. A		5,627	$	405,257
				21,912,965
Lodging — 0.4%
Hilton Hotels Corp.		11,891		414,996
Marriott International, Inc. Cl. A		10,428		497,624
Starwood Hotels & Resorts Worldwide, Inc.		6,740		421,250
Wyndham Worldwide Corp.(a)		6,288		201,342
				1,535,212
Machinery & Components — 1.1%
Baker Hughes, Inc.		10,098		753,917
Caterpillar, Inc.		20,104		1,232,978
Cummins, Inc.		1,539		181,879
Deere & Co.		7,043		669,578
Dover Corp.		6,235		305,640
Ingersoll-Rand Co. Ltd. Cl. A		9,866		386,057
Pall Corp.		3,792		131,014
Parker Hannifin Corp.		3,714		285,532
Smith International, Inc.		6,300		258,741
				4,205,336
Manufacturing — 0.4%
American Standard Cos., Inc.		5,400		247,590
Applied Materials, Inc.		42,706		787,926
Avery Dennison Corp.		2,928		198,899
Millipore Corp.(a) (b)		1,715		114,219
Terex Corp.(a)		3,100		200,198
				1,548,832
Medical Supplies — 2.1%
Agilent Technologies, Inc.(a)		12,583		438,518
Allergan, Inc.		4,616		552,720
Applera Corp. - Applied Biosystems Group		5,538		203,189
Bard (C.R.), Inc.		3,220		267,163
Bausch & Lomb, Inc.		1,692		88,086
Baxter International, Inc.		19,992		927,429
Becton, Dickinson & Co.		7,648		536,507
Biomet, Inc.		7,755		320,049
Boston Scientific Corp.(a)		36,172		621,435
Medtronic, Inc.		35,381		1,893,237
Patterson Companies, Inc.(a)		4,500		159,795
St. Jude Medical, Inc.(a)		10,844		396,457
Stryker Corp.		9,100		501,501
Tektronix, Inc.		2,620		76,425
Thermo Fisher Scientific, Inc.(a) (b)		12,754		577,629

	Number of Shares		Market Value
Waters Corp.(a)		3,200	$	156,704
Zimmer Holdings, Inc.(a)		7,522		589,574
				8,306,418
Metals & Mining — 0.9%
Alcoa, Inc.		26,688		800,907
Allegheny Technologies, Inc.		3,044		276,030
CONSOL Energy, Inc.		5,600		179,928
Freeport-McMoRan Copper & Gold, Inc. Cl. B(b)		6,033		336,219
Newmont Mining Corp.		13,809		623,476
Nucor Corp.		9,456		516,865
Phelps Dodge Corp.		6,270		750,644
United States Steel Corp.		3,754		274,568
				3,758,637
Pharmaceuticals — 7.9%
Abbott Laboratories		46,998		2,289,273
AmerisourceBergen Corp.		6,352		285,586
Amgen, Inc.(a)		35,969		2,457,042
Barr Pharmaceuticals, Inc.(a)		3,400		170,408
Biogen Idec, Inc.(a)		10,537		518,315
Bristol-Myers Squibb Co.		60,442		1,590,833
Cardinal Health, Inc.		12,469		803,378
Celgene Corp.(a) (b)		11,400		655,842
Eli Lilly & Co.		30,195		1,573,160
Forest Laboratories, Inc.(a)		9,780		494,868
Genzyme Corp.(a)		8,200		504,956
Gilead Sciences, Inc.(a)		14,044		911,877
Hospira, Inc.(a)		5,039		169,210
Johnson & Johnson		89,896		5,934,934
King Pharmaceuticals, Inc.(a)		7,867		125,243
McKesson Corp.		9,187		465,781
Medco Health Solutions, Inc.(a)		9,020		482,029
MedImmune, Inc.(a) (b)		7,564		244,847
Merck & Co., Inc.		66,915		2,917,494
Mylan Laboratories, Inc.		6,724		134,211
Pfizer, Inc.		224,141		5,805,252
Schering-Plough Corp.(b)		45,488		1,075,336
Sigma-Aldrich Corp.		1,984		154,196
Watson Pharmaceutical, Inc.(a)		3,270		85,118
Wyeth		41,356		2,105,848
				31,955,037
Photography Equipment/Supplies — 0.1%
Eastman Kodak Co.(b)		8,860		228,588

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Prepackaged Software — 3.2%
Adobe Systems, Inc.(a)		17,812	$	732,429
BMC Software, Inc.(a)		6,465		208,173
CA, Inc.		12,629		286,047
Citrix Systems, Inc.(a)		5,792		156,674
Compuware Corp.(a)		11,478		95,612
Electronic Arts, Inc.(a)		9,400		473,384
Intuit, Inc.(a)		10,720		327,067
Microsoft Corp.		266,308		7,951,957
Novell, Inc.(a)		10,976		68,051
Oracle Corp.(a)		123,961		2,124,692
Symantec Corp.(a) (b)		28,889		602,336
				13,026,422
Real Estate — 0.9%
Boston Properties, Inc.(b)		3,500		391,580
CB Richard Ellis Group, Inc. Cl. A(a)		5,600		185,920
Equity Office Properties Trust		10,760		518,309
Equity Residential REIT		9,000		456,750
Kimco Realty Corp.(b)		6,600		296,670
ProLogis		7,500		455,775
Realogy Corp.(a)		6,573		199,293
Simon Property Group, Inc. REIT(b)		6,800		688,772
Vornado Realty Trust(b)		3,700		449,550
				3,642,619
Restaurants — 0.6%
Darden Restaurants, Inc.		4,292		172,410
McDonald's Corp.		37,677		1,670,221
Wendy's International, Inc.		3,675		121,606
Yum! Brands, Inc.		8,298		487,922
				2,452,159
Retail — 4.5%
Amazon.com, Inc.(a) (b)		9,733		384,064
AutoZone, Inc.(a)		1,654		191,136
Bed Bath & Beyond, Inc.(a)		8,850		337,185
Best Buy Co., Inc.		12,595		619,548
Big Lots, Inc.(a) (b)		3,374		77,332
Circuit City Stores, Inc.		4,400		83,512
Costco Wholesale Corp.		14,442		763,549
CVS Corp.		25,306		782,208
Dillards, Inc. Cl. A(b)		2,101		73,472
Dollar General Corp.		9,614		154,401
Family Dollar Stores, Inc.		4,751		139,347
Federated Department Stores, Inc.		16,700		636,771
The Home Depot, Inc.		63,437		2,547,630
J.C. Penney Co., Inc.		7,009		542,216
Kohl's Corp.(a)		10,023		685,874
Lowe's Companies, Inc.(b)		46,964		1,462,929
Office Depot, Inc.(a)		8,765		334,560
OfficeMax, Inc.		2,242		111,315
RadioShack Corp.(b)		4,181		70,157

	Number of Shares		Market Value
Sears Holdings Corp.(a) (b)		2,508	$	421,168
Staples, Inc.		22,359		596,985
Target Corp.		26,368		1,504,294
Tiffany & Co.		4,292		168,418
The TJX Cos., Inc.		13,776		392,340
Walgreen Co.		31,004		1,422,774
Wal-Mart Stores, Inc.		75,634		3,492,778
				17,995,963
Retail – Grocery — 0.1%
Whole Foods Market, Inc.(b)		4,300		201,799
Telephone Utilities — 3.4%
Alltel Corp.		11,908		720,196
AT&T, Inc.		119,434		4,269,766
BellSouth Corp.		55,820		2,629,680
CenturyTel, Inc.		3,731		162,895
Embarq Corp.		4,627		243,195
Qwest Communications International, Inc.(a)		49,258		412,289
Sprint Nextel Corp.		89,159		1,684,214
Verizon Communications, Inc.		89,116		3,318,680
Windstream Corp.		15,131		215,163
				13,656,078
Tobacco — 1.5%
Altria Group, Inc.		64,354		5,522,860
Reynolds American, Inc.(b)		5,300		346,991
UST, Inc.		4,922		286,460
				6,156,311
Toys, Games — 0.1%
Hasbro, Inc.		5,091		138,730
Mattel, Inc.		11,589		262,607
				401,337
Transportation — 1.7%
Burlington Northern Santa Fe Corp.		11,093		818,774
Carnival Corp.		13,585		666,344
CSX Corp.		13,630		469,281
FedEx Corp.		9,403		1,021,354
Norfolk Southern Corp.		12,689		638,130
Union Pacific Corp.		8,317		765,330
United Parcel Service, Inc. Cl. B		33,200		2,489,336
				6,868,549
Travel — 0.0%
Sabre Holdings Corp. Cl. A		4,231		134,927
TOTAL EQUITIES (Cost $301,382,715)				393,288,950

	Principal Amount		Market Value
SHORT-TERM INVESTMENTS — 6.5%
Cash Equivalents — 4.3%(e)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	427,317	$	427,317
American Beacon Money Market Fund(c)		147,578		147,578
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		624,546		624,546
Bank of America 5.270% 01/09/2007		328,709		328,709
Bank of America 5.310% 03/08/2007		328,709		328,709
Bank of America 5.320% 02/16/2007		98,613		98,613
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		197,225		197,225
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		657,417		657,417
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		427,321		427,321
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		164,354		164,354
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		328,709		328,709
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		328,709		328,709
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		98,613		98,613
BGI Institutional Money Market Fund(c)		310,529		310,529
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		493,063		493,063
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		164,354		164,354
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		164,354		164,354
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		604,824		604,824

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007	$	493,063	$	493,063
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		164,354		164,354
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		328,709		328,709
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		328,709		328,709
Dreyfus Cash Management Plus Money Market Fund(c)		117,414		117,414
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		55,055		55,055
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		85,777		85,777
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		328,709		328,709
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		131,483		131,483
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		493,063		493,063
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		493,063		493,063
Freddie Mac Discount Note 5.231% 01/23/2007		130,817		130,817
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		164,354		164,354
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		294,471		294,471
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		460,192		460,192
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		328,709		328,709

	Principal Amount		Market Value
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007	$	262,967	$	262,967
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		493,063		493,063
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		197,225		197,225
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		821,771		821,771
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		295,838		295,838
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		328,709		328,709
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		486,489		486,489
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		328,709		328,709
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		65,742		65,742
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		164,354		164,354
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		262,967		262,967
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		657,417		657,417
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		493,063		493,063
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		131,483		131,483
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,133,922		1,133,922
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		170,928		170,928
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		394,450		394,450

	Principal Amount		Market Value
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007	$	197,225	$	197,225
				17,179,208
Repurchase Agreement — 2.1%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(f)		8,446,708		8,446,708
U.S. Treasury Bills — 0.1%
U.S. Treasury Bill(d) 4.850% 02/22/2007		385,000		382,303
TOTAL SHORT-TERM INVESTMENTS (Cost $26,008,219)				26,008,219
TOTAL INVESTMENTS — 104.2% (Cost $327,390,934)(g)				419,297,169
Other Assets/ (Liabilities) — (4.2%)				(16,772,485	)
NET ASSETS — 100.0%			$	402,524,684

Notes to Portfolio of Investments

ADR - American Depository Receipt

REIT - Real Estate Investment Trust

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) This security is held as collateral for open futures contracts. (Note 2).

(e) Represents investments of security lending collateral. (Note 2).

(f) Maturity value of $8,449,993. Collateralized by a U.S. Government Agency obligation with a rate of 4.377%, maturity date of 01/01/2034, and an aggregate market value, including accrued interest, of $8,869,044.

(g) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Growth Equity Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 97.9%
COMMON STOCK — 97.9%
Advertising — 0.1%
Monster Worldwide, Inc.(a)		300	$	13,992
Aerospace & Defense — 3.0%
General Dynamics Corp.		600		44,610
Lockheed Martin Corp.(b)		2,400		220,968
Northrop Grumman Corp.		1,400		94,780
Raytheon Co.		1,100		58,080
United Technologies Corp.		3,000		187,560
				605,998
Apparel, Textiles & Shoes — 1.2%
Abercrombie & Fitch Co. Cl. A		200		13,926
American Eagle Outfitters, Inc.		1,950		60,860
AnnTaylor Stores Corp.(a)		900		29,556
Claire's Stores, Inc.		1,400		46,396
Columbia Sportswear Co.		200		11,140
Limited Brands, Inc.		2,000		57,880
Liz Claiborne, Inc.		300		13,038
VF Corp.		200		16,416
				249,212
Automotive & Parts — 0.7%
AutoNation, Inc.(a)		1,600		34,112
Harley-Davidson, Inc.		1,100		77,517
Paccar, Inc.		500		32,450
				144,079
Banking, Savings & Loans — 1.6%
JP Morgan Chase & Co.		4,900		236,670
Mellon Financial Corp.(b)		1,800		75,870
The First Marblehead Corp.(b)		300		16,395
				328,935
Beverages — 1.7%
Anheuser-Busch Cos., Inc.		4,000		196,800
The Coca-Cola Co.		2,900		139,925
The Pepsi Bottling Group, Inc.		400		12,364
				349,089
Broadcasting, Publishing & Printing — 1.9%
Comcast Corp. Cl. A(a)		6,900		292,077
The DIRECTV Group, Inc.(a)		3,200		79,808
Univision Communications, Inc. Cl. A(a)		600		21,252
				393,137

	Number of Shares		Market Value
Building Materials & Construction — 0.1%
Masco Corp.(b)		800	$	23,896
Chemicals — 0.5%
Air Products & Chemicals, Inc.		200		14,056
Du Pont (E.I.) de Nemours & Co.		1,400		68,194
PPG Industries, Inc.		200		12,842
				95,092
Commercial Services — 4.3%
Ecolab, Inc.		700		31,640
Fastenal Co.(b)		1,800		64,584
Fluor Corp.(b)		300		24,495
Global Payments, Inc.		700		32,410
ITT Educational Services, Inc.(a)		400		26,548
Manpower, Inc.		1,100		82,423
MoneyGram International, Inc.(b)		800		25,088
Moody's Corp.		2,800		193,368
Pharmaceutical Product Development, Inc.		820		26,420
Quest Diagnostics		1,900		100,700
Rent-A-Center, Inc.(a)		1,400		41,314
Robert Half International, Inc.(b)		1,500		55,680
Ryder System, Inc.		800		40,848
Waste Management, Inc.		2,900		106,633
Weight Watchers International, Inc.		200		10,506
				862,657
Communications — 1.9%
Harris Corp.		600		27,516
Network Appliance, Inc.(a)		2,000		78,560
Qualcomm, Inc.		6,700		253,193
Tellabs, Inc.(a)		1,900		19,494
				378,763
Computer Integrated Systems Design — 0.1%
Computer Sciences Corp.(a) (b)		400		21,348
Computer Programming Services — 0.4%
Cognizant Technology Solutions Corp. Cl. A(a)		1,100		84,876
Computer Related Services — 0.1%
Checkfree Corp.(a) (b)		300		12,048
Computers & Information — 5.6%
CDW Corp.(b)		700		49,224
Cisco Systems, Inc.(a)		18,400		502,872

	Number of Shares		Market Value
Dell, Inc.(a)		7,400	$	185,666
International Business Machines Corp.		1,300		126,295
International Game Technology		3,200		147,840
Lexmark International, Inc.(a)		1,400		102,480
Tech Data Corp.(a)		300		11,361
				1,125,738
Computers & Office Equipment — 0.6%
Hewlett-Packard Co.		2,200		90,618
Pitney Bowes, Inc.		600		27,714
				118,332
Containers — 0.2%
Pactiv Corp.(a)		1,400		49,966
Cosmetics & Personal Care — 0.8%
Avon Products, Inc.		1,500		49,560
Colgate-Palmolive Co.		700		45,668
Kimberly-Clark Corp.		1,100		74,745
				169,973
Data Processing & Preparation — 0.6%
Affiliated Computer Services, Inc. Cl. A(a)		700		34,188
First Data Corp.		2,000		51,040
Fiserv, Inc.(a)		700		36,694
				121,922
Electric Utilities — 0.1%
AES Corp.(a)		500		11,020
Electrical Equipment & Electronics — 3.3%
Amphenol Corp. Cl. A		200		12,416
Emerson Electric Co.		5,800		255,606
Energizer Holdings, Inc.(a)		300		21,297
Intel Corp.		3,700		74,925
Johnson Controls, Inc.(b)		1,300		111,696
Lincoln Electric Holdings, Inc.		200		12,084
Micron Technology, Inc.(a)		900		12,564
Molex, Inc.		800		25,304
Rockwell Automation, Inc.		1,600		97,728
Wesco International, Inc.(a)		700		41,167
				664,787
Energy — 4.8%
Anadarko Petroleum Corp.		1,300		56,576
Chevron Corp.		600		44,118
ConocoPhillips Co.		742		53,387

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Devon Energy Corp.		300	$	20,124
Exxon Mobil Corp.		8,700		666,681
Marathon Oil Corp.		700		64,750
Occidental Petroleum Corp.		1,200		58,596
				964,232
Entertainment & Leisure — 1.4%
News Corp., Inc. Cl. A		4,900		105,252
The Walt Disney Co.		5,000		171,350
				276,602
Financial Services — 4.9%
Chicago Mercantile Exchange Holdings, Inc.		100		50,975
E*TRADE Financial Corp.(a)		1,500		33,630
Federated Investors, Inc. Cl. B		500		16,890
Investment Technology Group, Inc.(a)		300		12,864
Lehman Brothers Holdings, Inc.		1,000		78,120
Merrill Lynch & Co., Inc.		1,200		111,720
Morgan Stanley		2,000		162,860
TD Ameritrade Holding Corp.		900		14,562
The Bear Stearns Cos., Inc.		400		65,112
The Charles Schwab Corp.		3,900		75,426
The Goldman Sachs Group, Inc.		1,800		358,830
				980,989
Food Retailers — 1.8%
Starbucks Corp.(a)		10,400		368,368
Foods — 1.8%
Archer-Daniels-Midland Co.		4,000		127,840
Campbell Soup Co.(b)		900		35,001
Heinz (H. J.) Co.		1,400		63,014
Kraft Foods, Inc. Cl. A(b)		600		21,420
Sara Lee Corp.		1,400		23,842
The Kroger Co.		4,200		96,894
				368,011
Healthcare — 2.9%
Caremark Rx, Inc.		200		11,422
Express Scripts, Inc.(a)		1,700		121,720
Health Management Associates, Inc. Cl. A(b)		500		10,555
Health Net, Inc.(a)		500		24,330
Laboratory Corp. of America Holdings(a)		400		29,388
Lincare Holdings, Inc.(a)		1,300		51,792
Manor Care, Inc.		300		14,076
UnitedHealth Group, Inc.		5,988		321,735
				585,018

	Number of Shares		Market Value
Home Construction, Furnishings & Appliances — 0.7%
Centex Corp.(b)		200	$	11,254
Harman International Industries, Inc.		200		19,982
KB Home		500		25,640
Lennar Corp. Cl. A		200		10,492
Mohawk Industries, Inc.(a) (b)		200		14,972
The Ryland Group, Inc.		300		16,386
Whirlpool Corp.		536		44,499
				143,225
Industrial – Distribution — 0.1%
W.W. Grainger, Inc.		200		13,988
Industrial – Diversified — 2.1%
Corning, Inc.(a)		600		11,226
Danaher Corp.		2,700		195,588
Illinois Tool Works, Inc.		3,500		161,665
Textron, Inc.		600		56,262
				424,741
Information Retrieval Services — 0.5%
Google, Inc. Cl. A(a)		200		92,096
Insurance — 3.5%
AFLAC, Inc.(b)		3,000		138,000
Ambac Financial Group, Inc.		500		44,535
American International Group, Inc.		2,500		179,150
Aon Corp.		1,300		45,942
Lincoln National Corp.		500		33,200
MBIA, Inc.		400		29,224
Progressive Corp.		4,500		108,990
Radian Group, Inc.		100		5,391
St. Paul Travelers Cos.		600		32,214
The PMI Group, Inc.(b)		1,000		47,170
W.R. Berkley Corp.		1,200		41,412
				705,228
Internet Content — 0.3%
BEA Systems, Inc.(a)		4,600		57,868
Lodging — 0.3%
Marriott International, Inc. Cl. A		1,200		57,264
Machinery & Components — 2.4%
Baker Hughes, Inc.		1,100		82,126
Caterpillar, Inc.		2,900		177,857
Cummins, Inc.(b)		400		47,272
Deere & Co.(b)		600		57,042
Flowserve Corp.(a)		400		20,188
FMC Technologies, Inc.(a)		900		55,467
Parker Hannifin Corp.		600		46,128
				486,080

	Number of Shares		Market Value
Manufacturing — 0.7%
American Standard Cos., Inc.		600	$	27,510
Lam Research Corp.(a)		300		15,186
Terex Corp.(a)		1,400		90,412
				133,108
Medical Supplies — 2.3%
Agilent Technologies, Inc.(a)		3,300		115,005
Allergan, Inc.		700		83,818
Applera Corp. - Applied Biosystems Group		2,000		73,380
Baxter International, Inc.		300		13,917
Becton, Dickinson & Co.		900		63,135
Medtronic, Inc.(b)		600		32,106
Respironics, Inc.(a)		300		11,325
Stryker Corp.		500		27,555
Varian Medical Systems, Inc.(a)		1,100		52,327
				472,568
Metals & Mining — 1.0%
Alcoa, Inc.		2,100		63,021
Nucor Corp.		1,900		103,854
Reliance Steel & Aluminum Co.		900		35,442
				202,317
Pharmaceuticals — 11.2%
Abbott Laboratories		3,800		185,098
Amgen, Inc.(a)		500		34,155
Barr Pharmaceuticals, Inc.(a)		400		20,048
Biogen Idec, Inc.(a) (b)		600		29,514
Bristol-Myers Squibb Co.		2,900		76,328
Cardinal Health, Inc.		1,300		83,759
Celgene Corp.(a)		200		11,506
Forest Laboratories, Inc.(a)		4,500		227,700
Gilead Sciences, Inc.(a)		300		19,479
Johnson & Johnson		6,400		422,528
King Pharmaceuticals, Inc.(a)		700		11,144
McKesson Corp.		1,700		86,190
Merck & Co., Inc.		14,900		649,640
Pfizer, Inc.		15,300		396,270
				2,253,359
Prepackaged Software — 3.2%
BMC Software, Inc.(a)		1,800		57,960
Cerner Corp.(a)		700		31,850
Citrix Systems, Inc.(a)		2,300		62,215
Intuit, Inc.(a)		1,100		33,561
Microsoft Corp.		4,700		140,342
Oracle Corp.(a)		18,200		311,948
				637,876

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Restaurants — 0.2%
Applebee's International, Inc.		200	$	4,934
Brinker International, Inc.		1,350		40,716
				45,650
Retail — 14.5%
AutoZone, Inc.(a)		400		46,224
Bed Bath & Beyond, Inc.(a) (b)		2,500		95,250
Best Buy Co., Inc.		1,300		63,947
Carmax, Inc.(a)		600		32,178
Circuit City Stores, Inc.		2,100		39,858
Costco Wholesale Corp.		2,400		126,888
CVS Corp.		900		27,819
Dollar General Corp.		2,500		40,150
Dollar Tree Stores, Inc.(a)		800		24,080
Family Dollar Stores, Inc.		2,100		61,593
J.C. Penney Co., Inc.		500		38,680
Kohl's Corp.(a)		3,000		205,290
Lowe's Companies, Inc.		13,900		432,985
Office Depot, Inc.(a)		3,000		114,510
O'Reilly Automotive, Inc.(a) (b)		1,300		41,678
Petsmart, Inc.		500		14,430
Staples, Inc.		3,500		93,450
Target Corp.		200		11,410
The Home Depot, Inc.		18,200		730,912
The TJX Cos., Inc.		1,400		39,872
Walgreen Co.		3,300		151,437
Wal-Mart Stores, Inc.		10,800		498,744
				2,931,385
Telephone Utilities — 1.7%
AT&T, Inc.		3,100		110,825
BellSouth Corp.		4,200		197,862
NII Holdings, Inc. Cl. B(a) (b)		100		6,444
Qwest Communications International, Inc.(a) (b)		4,600		38,502
				353,633
Tobacco — 1.2%
Altria Group, Inc.		2,200		188,804
Reynolds American, Inc.(b)		200		13,094
UST, Inc.		800		46,560
				248,458
Toys, Games — 0.1%
Mattel, Inc.		500		11,330
Transportation — 5.5%
Burlington Northern Santa Fe Corp.		1,800		132,858
CSX Corp.		1,500		51,645

	Number of Shares		Market Value
Expeditors International of Washington, Inc.		3,900	$	157,950
FedEx Corp.		4,500		488,790
Norfolk Southern Corp.		1,600		80,464
Robinson (C.H.) Worldwide, Inc.(b)		2,800		114,492
Thor Industries, Inc.(b)		900		39,591
Union Pacific Corp.		600		55,212
				1,121,002
TOTAL EQUITIES (Cost $18,730,413)				19,759,256
RIGHTS — 0.0%
Computers & Information
Seagate Technology(c)		11,100		-
TOTAL RIGHTS (Cost $0)				-
TOTAL LONG TERM INVESTMENTS (Cost $18,730,413)				19,759,256
	Principal Amount
SHORT-TERM INVESTMENTS — 9.5%
Cash Equivalents — 7.3%(e)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	36,633		36,633
American Beacon Money Market Fund(d)		12,652		12,652
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		53,539		53,539
Bank of America 5.270% 01/09/2007		28,179		28,179
Bank of America 5.310% 03/08/2007		28,179		28,179
Bank of America 5.320% 02/16/2007		8,453		8,453
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		16,907		16,907
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		56,356		56,356
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		36,632		36,632

	Principal Amount		Market Value
Barclays Eurodollar Time Deposit 5.300% 01/03/2007	$	28,178	$	28,178
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		28,178		28,178
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		8,453		8,453
BGI Institutional Money Market Fund(d)		26,620		26,620
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		42,267		42,267
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		14,089		14,089
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		14,089		14,089
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		51,848		51,848
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		42,267		42,267
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		14,089		14,089
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		28,178		28,178
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		28,178		28,178
Dreyfus Cash Management Plus Money Market Fund(d)		10,065		10,065
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		4,720		4,720
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		7,353		7,353
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		28,178		28,178
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		11,271		11,271

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth Equity Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007	$	42,267	$	42,267
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		42,267		42,267
Freddie Mac Discount Note 5.231% 01/23/2007		11,214		11,214
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		14,089		14,089
Goldman Sachs Financial Square Prime Obligations Money Market Fund(d)		25,243		25,243
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		39,449		39,449
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		28,178		28,178
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		22,543		22,543
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		42,267		42,267
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		16,907		16,907
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		70,445		70,445
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		25,360		25,360
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		28,178		28,178
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		41,704		41,704
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		28,178		28,178
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		5,636		5,636
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		14,089		14,089

	Principal Amount		Market Value
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007	$	22,543	$	22,543
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		56,356		56,356
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		42,267		42,267
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		11,271		11,271
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		97,204		97,204
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		14,089		14,089
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		14,653		14,653
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		33,814		33,814
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		16,907		16,907
				1,472,669
Repurchase Agreement — 2.2%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(f)		437,729		437,729
TOTAL SHORT-TERM INVESTMENTS (Cost $1,910,398)				1,910,398
TOTAL INVESTMENTS — 107.4% (Cost $20,640,811)(g)				21,669,654
Other Assets/ (Liabilities) — (7.4%)				(1,487,592	)
NET ASSETS — 100.0%			$	20,182,062

Notes to Portfolio of Investments

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Amount represents shares owned of the fund.

(e) Represents investments of security lending collateral. (Note 2).

(f) Maturity value of $437,899. Collateralized by U.S. Government Agency obligation with a rate of 8.00%, maturity date of 11/25/2019, and an aggregate market value, including accrued interest, of $459,615.

(g) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML OTC 100 Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 97.0%
COMMON STOCK — 97.0%
Advertising — 0.7%
Lamar Advertising Co.(a)		451	$	29,491
Monster Worldwide, Inc.(a)		718		33,488
				62,979
Apparel, Textiles & Shoes — 0.7%
American Eagle Outfitters, Inc.		1,270		39,637
Ross Stores, Inc.		755		22,120
				61,757
Automotive & Parts — 1.2%
Paccar, Inc.		1,524		98,908
Broadcasting, Publishing & Printing — 3.9%
Comcast Corp. Cl. A(a)		5,245		222,021
Gemstar-TV Guide International, Inc.(a)		49		196
Liberty Global, Inc. Cl. A(a)		1,132		32,998
Liberty Media Holding Corp. Interactive Cl. A(a)		3,314		71,483
				326,698
Commercial Services — 4.7%
Akamai Technologies, Inc.(a)		821		43,612
Apollo Group, Inc. Cl. A(a)		958		37,333
Cintas Corp.		1,055		41,894
eBay, Inc.(a)		5,692		171,158
Fastenal Co.		790		28,345
Paychex, Inc.		1,976		78,131
				400,473
Communications — 9.7%
EchoStar Communications Corp. Cl. A(a)		1,168		44,419
Millicom International Cellular SA(a)		533		32,854
Network Appliance, Inc.(a)		2,127		83,549
NTL, Inc.		1,948		49,168
Qualcomm, Inc.		10,910		412,289
Research In Motion Ltd.(a)		1,007		128,674
Sirius Satellite Radio, Inc.(a)		8,335		29,506
Tellabs, Inc.(a)		1,379		14,149
XM Satellite Radio Holdings, Inc. Cl. A(a)		1,725		24,926
				819,534

	Number of Shares		Market Value
Communications Equipment — 0.3%
Telefonaktiebolaget LM Ericsson Cl. B Sponsored ADR (Sweden)		556	$	22,368
Computer Integrated Systems Design — 1.5%
Autodesk, Inc.(a)		1,320		53,407
Cadence Design Systems, Inc.(a)		1,592		28,513
Sun Microsystems, Inc.(a)		8,381		45,425
				127,345
Computer Programming Services — 1.4%
Cognizant Technology Solutions Corp. Cl. A(a)		757		58,410
Infosys Technologies Ltd. Sponsored ADR (India)		603		32,900
VeriSign, Inc.(a)		1,254		30,159
				121,469
Computer Related Services — 1.0%
Checkfree Corp.(a)		462		18,554
IAC/InterActiveCorp(a)		1,676		62,280
				80,834
Computers & Information — 12.9%
Apple, Inc.(a)		6,513		552,563
CDW Corp.		447		31,433
Cisco Systems, Inc.(a)		11,876		324,571
Comverse Technology, Inc.(a)		1,148		24,234
Dell, Inc.(a)		4,575		114,787
SanDisk Corp.(a)		1,136		48,882
				1,096,470
Data Processing & Preparation — 0.7%
Fiserv, Inc.(a)		1,186		62,170
Electrical Equipment & Electronics — 10.8%
Altera Corp.(a)		2,786		54,828
American Power Conversion Corp.		1,065		32,578
Broadcom Corp. Cl. A(a)		2,342		75,670
Flextronics International Ltd.(a)		3,447		39,572
Garmin Ltd.		1,096		61,003
Intel Corp.		11,052		223,803
KLA-Tencor Corp.		1,319		65,620
Linear Technology Corp.		2,187		66,310
Marvell Technology Group Ltd.(a)		3,057		58,664
Maxim Integrated Products, Inc.		2,460		75,325
Microchip Technology, Inc.		983		32,144

	Number of Shares		Market Value
Nvidia Corp.(a)		1,911	$	70,726
Xilinx, Inc.		2,442		58,144
				914,387
Energy — 0.2%
Patterson-UTI Energy, Inc.		879		20,419
Food Retailers — 2.4%
Starbucks Corp.(a)		5,754		203,807
Healthcare — 0.6%
Express Scripts, Inc.(a)		662		47,399
Information Retrieval Services — 5.6%
Google, Inc. Cl. A(a)		744		342,597
Juniper Networks, Inc.(a)		2,036		38,562
Yahoo!, Inc.(a)		3,579		91,408
				472,567
Internet Content — 0.3%
BEA Systems, Inc.(a)		1,990		25,034
Lodging — 0.7%
Wynn Resorts Ltd.		606		56,873
Machinery & Components — 0.4%
Joy Global, Inc.		638		30,841
Manufacturing — 1.3%
Applied Materials, Inc.		3,923		72,379
Lam Research Corp.(a)		806		40,800
				113,179
Medical Supplies — 1.7%
Biomet, Inc.		1,806		74,534
Dentsply International, Inc.		799		23,850
Intuitive Surgical, Inc.(a)		202		19,372
Patterson Companies, Inc.(a)		730		25,922
				143,678
Pharmaceuticals — 11.3%
Amgen, Inc.(a)		2,977		203,359
Amylin Pharmaceuticals, Inc.(a)		688		24,816
Biogen Idec, Inc.(a)		2,006		98,675
Celgene Corp.(a)		2,051		117,994
Genzyme Corp.(a)		1,804		111,090
Gilead Sciences, Inc.(a)		2,479		160,961
MedImmune, Inc.(a)		1,402		45,383
Sepracor, Inc.(a)		583		35,901
Sigma-Aldrich Corp.		347		26,969
Teva Pharmaceutical Sponsored ADR (Israel)		3,326		103,372
Vertex Pharmaceuticals, Inc.(a)		719		26,905
				955,425

(Continued)

The accompanying notes are an integral part of the financial statements.

MML OTC 100 Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Prepackaged Software — 14.6%
Activision, Inc.(a)		1,371	$	23,636
Adobe Systems, Inc.(a)		3,130		128,706
Check Point Software Technologies Ltd.(a)		1,290		28,277
Citrix Systems, Inc.(a)		1,175		31,784
Electronic Arts, Inc.(a)		1,703		85,763
Intuit, Inc.(a)		2,405		73,377
Microsoft Corp.		18,520		553,007
Oracle Corp.(a)		11,858		203,246
Symantec Corp.(a)		5,369		111,944
				1,239,740
Retail — 5.3%
Amazon.com, Inc.(a)		1,497		59,072
Bed Bath & Beyond, Inc.(a)		2,081		79,286
Costco Wholesale Corp.		1,322		69,894
Petsmart, Inc.		758		21,876
Sears Holdings Corp.(a)		881		147,946
Staples, Inc.		2,657		70,942
				449,016
Retail – Grocery — 0.4%
Whole Foods Market, Inc.		750		35,198
Telephone Utilities — 1.0%
Level 3 Communications, Inc.(a)		6,278		35,157
NII Holdings, Inc. Cl. B(a)		823		53,034
				88,191
Transportation — 1.2%
Discovery Holding Co. Cl. A(a)		1,303		20,965
Expeditors International of Washington, Inc.		1,146		46,413
Robinson (C.H.) Worldwide, Inc.		915		37,414
				104,792
Travel — 0.5%
Expedia, Inc.(a)		1,806		37,890
TOTAL EQUITIES (Cost $6,695,205)				8,219,441

	Principal Amount		Market Value
SHORT-TERM INVESTMENTS — 2.6%
Repurchase Agreement — 2.0%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(c)	$	171,263	$	171,263
U.S. Treasury Bills — 0.6%
U.S. Treasury Bill 4.850% 02/22/2007(b)		50,000		49,650
TOTAL SHORT-TERM INVESTMENTS (Cost $220,913)				220,913
TOTAL INVESTMENTS — 99.6% (Cost $6,916,119)(d)				8,440,354
Other Assets/ (Liabilities) — 0.4%				33,282
NET ASSETS — 100.0%			$	8,473,636

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) This security is held as collateral for open futures contracts. (Note 2).

(c) Maturity value of $171,330. Collateralized by a U.S. Government Agency obligation with a rate of 7.25%, maturity date of 04/25/2016, and an aggregate market value, including accrued interest, of $179,826.

(d) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 90.7%
COMMON STOCK — 90.7%
Advertising — 1.4%
Catalina Marketing Corp.		25,080	$	689,700
Focus Media Holding Ltd. ADR (China)(a)		8,590		570,290
Getty Images, Inc.(a)		27,575		1,180,761
				2,440,751
Aerospace & Defense — 0.6%
Orbital Sciences Corp.(a)		4,300		79,292
Transdigm Group, Inc.(a)		22,010		583,485
Triumph Group, Inc.		7,350		385,360
				1,048,137
Air Transportation — 1.1%
Airtran Holdings, Inc.(a) (b)		29,000		340,460
Copa Holdings SA Cl. A		13,280		618,317
Gol Linhas Aereas Inteligentes SA ADR (Brazil)(b)		13,220		379,017
JetBlue Airways Corp.(a) (b)		39,100		555,220
				1,893,014
Apparel, Textiles & Shoes — 2.1%
Childrens Place(a) (b)		7,570		480,846
Citi Trends, Inc.(a) (b)		7,910		313,552
DSW, Inc. Cl. A(a) (b)		5,780		222,935
Heelys Inc.(a) (b)		27,700		889,447
Skechers U.S.A., Inc. Cl. A(a)		29,500		982,645
Tween Brands, Inc.(a) (b)		9,180		366,557
Urban Outfitters, Inc.(a) (b)		13,300		306,299
				3,562,281
Automotive & Parts — 3.1%
Comtech Group, Inc.(a) (b)		61,300		1,115,047
LKQ Corp.(a)		124,394		2,859,818
Tenneco, Inc.(a)		19,400		479,568
TRW Automotive Holdings Corp.(a)		17,600		455,312
United Auto Group, Inc.		16,700		393,619
				5,303,364
Banking, Savings & Loans — 2.5%
Advanta Corp. Cl. B		11,500		501,745

	Number of Shares		Market Value
Euronet Worldwide, Inc.(a) (b)		44,000	$	1,306,360
Financial Federal Corp.(b)		55,787		1,640,696
First Community Bancorp		14,660		766,278
Signature Bank(a)		940		29,121
				4,244,200
Broadcasting, Publishing & Printing — 1.0%
Central European Media Enterprises Ltd.(a) (b)		4,180		292,600
Charter Communications, Inc. Cl. A(a) (b)		196,400		600,984
LodgeNet Entertainment Corp.(a)		16,700		418,001
TiVo, Inc.(a) (b)		72,500		371,200
				1,682,785
Building Materials & Construction — 0.1%
Beacon Roofing Supply, Inc.(a) (b)		11,250		211,725
Chemicals — 1.5%
Agrium, Inc.		18,080		569,339
Cytec Industries, Inc.(b)		7,525		425,238
Hercules, Inc.(a)		25,900		500,129
Minerals Technologies, Inc.		8,700		511,473
Terra Industries, Inc.(a)		42,030		503,519
VeraSun Energy(a) (b)		4,100		80,975
				2,590,673
Commercial Services — 8.6%
Aercap Holdings Nv(a)		4,600		106,628
American Reprographics Co.(a)		16,450		547,949
Bowne & Co., Inc.		26,600		424,004
The Corporate Executive Board Co.(b)		19,350		1,696,995
Ctrip.com International Ltd. ADR (China)(b)		5,180		323,646
Harris Interactive, Inc.(a)		47,300		238,392
Incyte Corp.(a)		30,600		178,704
ITT Educational Services, Inc.(a)		37,550		2,492,194
Jackson Hewitt Tax Service, Inc.		21,240		721,523
Magellan Health Services, Inc.(a)		9,400		406,268
Mobile Mini, Inc.(a)		27,300		735,462
MoneyGram International, Inc.(b)		21,170		663,891
Move, Inc.(a)		70,320		387,463
PeopleSupport, Inc.(a)		20,620		434,051

	Number of Shares		Market Value
Resources Connection, Inc.(a)		17,650	$	561,976
Sotheby's		8,100		251,262
Stericycle, Inc.(a)		7,420		560,210
Stewart Enterprises, Inc. Cl. A		63,800		398,750
TeleTech Holdings, Inc.(a)		46,950		1,121,166
Vertrue, Inc.(a) (b)		12,750		489,728
VistaPrint Ltd.(a)		26,580		880,064
Washington Group International, Inc.(a)		13,800		825,102
Waste Connections, Inc.(a)		4,800		199,440
				14,644,868
Communications — 1.0%
Polycom, Inc.(a)		24,960		771,514
Powerwave Technologies, Inc.(a)		35,700		230,265
Sonus Networks, Inc.(a)		94,430		622,294
				1,624,073
Computer & Other Data Processing Service — 1.5%
Baidu.com ADR (China)(a) (b)		4,160		468,915
IHS, Inc. Cl. A(a)		19,800		781,704
LoopNet, Inc.(a) (b)		82,000		1,228,360
				2,478,979
Computer Integrated Systems Design — 0.5%
Mentor Graphics Corp.(a)		24,690		445,161
Sapient Corp.(a) (b)		60,000		329,400
				774,561
Computer Maintenance & Repair — 0.4%
Electronics for Imaging, Inc.(a)		22,400		595,392
Computer Related Services — 1.6%
Checkfree Corp.(a)		50,342		2,021,735
Ingram Micro, Inc. Cl. A(a)		31,100		634,751
				2,656,486
Computers & Information — 2.8%
Rackable Systems, Inc.(a) (b)		48,100		1,489,657
Redback Networks, Inc.(a) (b)		23,670		590,330
Scientific Games Corp. Cl. A(a)		52,700		1,593,121
VeriFone Holdings, Inc.(a) (b)		31,010		1,097,754
				4,770,862

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Consumer Services — 0.1%
Icon PLC Sponsored ADR (United Kingdom)(a)		6,100	$	229,970
Cosmetics & Personal Care — 0.2%
Nu Skin Enterprises, Inc. Cl. A		21,900		399,237
Data Processing & Preparation — 2.8%
The BISYS Group, Inc.(a)		28,100		362,771
FactSet Research Systems, Inc.		56,582		3,195,751
S1 Corp.(a)		75,600		416,556
The TriZetto Group, Inc.(a) (b)		43,620		801,299
				4,776,377
Electric Utilities — 0.2%
El Paso Electric Co.(a)		15,600		380,172
Electrical Equipment & Electronics — 3.4%
Benchmark Electronics, Inc.(a) (b)		14,850		361,746
Cypress Semiconductor Corp.(a) (b)		22,600		381,262
Energy Conversion Devices, Inc.(a) (b)		10,200		346,596
Esterline Technologies Corp.(a)		9,500		382,185
Hexcel Corp.(a) (b)		25,000		435,250
ON Semiconductor Corp.(a) (b)		58,600		443,602
Photon Dynamics, Inc.(a)		26,700		312,123
QLogic Corp.(a)		21,700		475,664
Semtech Corp.(a)		27,400		358,118
Silicon-On-Insulator Technologies(a)		16,470		578,921
Teledyne Technologies, Inc.(a)		17,360		696,657
Trident Microsystems, Inc.(a)		22,600		410,868
Varian Semiconductor Equipment Associates, Inc.(a)		12,770		581,290
				5,764,282
Energy — 4.4%
Arch Coal, Inc.		14,570		437,537
Bill Barrett Corp.(a) (b)		58,700		1,597,227
Cabot Oil & Gas Corp. Cl. A		7,510		455,482
Complete Production Services, Inc.(a)		25,710		545,052
Comstock Resources, Inc.(a)		14,900		462,794

	Number of Shares		Market Value
Denbury Resources, Inc.(a)		15,880	$	441,305
Grey Wolf, Inc.(a)		49,400		338,884
Newfield Exploration Co.(a)		34,200		1,571,490
OPTI Canada, Inc. CAD(a)		24,200		413,097
TETRA Technologies, Inc.(a)		12,300		314,634
UGI Corp.		13,800		376,464
Whiting Petroleum Corp.(a) (b)		9,800		456,680
				7,410,646
Entertainment & Leisure — 3.6%
Churchill Downs, Inc.		9,300		397,482
DreamWorks Animation SKG, Inc. Cl. A(a) (b)		19,800		583,902
Gaylord Entertainment(a)		59,300		3,020,149
Live Nation, Inc.(a) (b)		15,630		350,112
Pinnacle Entertainment, Inc.(a)		12,540		415,576
Shuffle Master, Inc.(a) (b)		53,100		1,391,220
				6,158,441
Financial Services — 1.0%
Aberdeen Asset Management PLC		125,920		469,160
Capital Trust Cl. A REIT		300		14,982
Jones Soda Co.(a)		7,600		93,480
The Nasdaq Stock Market, Inc.(a) (b)		10,600		326,374
Nuveen Investments, Inc. Cl. A		8,540		443,055
Redwood Trust, Inc.(b)		4,600		267,168
				1,614,219
Foods — 1.4%
Panera Bread Co. Cl. A(a) (b)		20,900		1,168,519
United Natural Foods, Inc.(a) (b)		34,100		1,224,872
				2,393,391
Healthcare — 5.4%
Allscripts Healthcare Solutions, Inc.(a) (b)		94,900		2,561,351
AmSurg Corp.(a) (b)		58,750		1,351,250
Community Health Systems, Inc.(a) (b)		11,000		401,720
Genesis HealthCare Corp.(a)		9,400		443,962
Healthways, Inc.(a) (b)		52,800		2,519,088
Human Genome Sciences, Inc.(a) (b)		27,000		335,880
LifePoint Hospitals, Inc.(a)		13,710		462,027
Manor Care, Inc.(b)		6,900		323,748

	Number of Shares		Market Value
Matria Healthcare, Inc.(a) (b)		12,600	$	361,998
Symbion, Inc.(a)		18,590		344,101
				9,105,125
Heavy Machinery — 2.5%
Bucyrus International, Inc. Cl. A		57,490		2,975,682
Flow International Corp.(a) (b)		31,100		342,722
Goodman Global, Inc.(a)		30,550		525,460
Verigy Ltd.(a) (b)		24,300		431,325
				4,275,189
Home Construction, Furnishings & Appliances — 1.1%
DTS, Inc.(a)		34,800		841,812
Fossil, Inc.(a)		25,280		570,822
Williams Scotsman International, Inc.(a)		19,970		391,811
				1,804,445
Household Products — 0.7%
Ferro Corp.(b)		25,800		533,802
Jarden Corp.(a) (b)		18,730		651,617
				1,185,419
Information Retrieval Services — 1.3%
CoStar Group, Inc.(a) (b)		29,100		1,558,596
DealerTrack Holdings, Inc.(a)		19,300		567,806
				2,126,402
Insurance — 2.4%
Allied World Assurance Holdings Ltd.		15,290		667,103
Aspen Insurance Holdings Ltd.		16,800		442,848
Ehealth, Inc.(a)		3,100		62,341
FPIC Insurance Group, Inc.(a)		10,400		405,288
Platinum Underwriters Holdings Ltd.		13,600		420,784
ProAssurance Corp.(a)		18,900		943,488
Reinsurance Group of America, Inc.		7,700		428,890
StanCorp Financial Group, Inc.		7,600		342,380
United America Indemnity Ltd. Cl. A(a)		17,700		448,341
				4,161,463
Internet Software — 0.2%
Opsware, Inc.(a) (b)		31,400		276,948

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Lodging — 0.9%
Vail Resorts, Inc.(a)		35,950	$	1,611,279
Machinery & Components — 1.1%
Axcelis Technologies, Inc.(a)		65,800		383,614
Chicago Bridge & Iron Co. NV		44,350		1,212,529
Insituform Technologies, Inc. Cl. A(a)		10,980		283,943
				1,880,086
Medical Supplies — 4.1%
Arrow International, Inc.		12,400		438,712
Hologic, Inc.(a) (b)		9,960		470,909
ICU Medical, Inc.(a)		9,640		392,155
Intralase Corp.(a) (b)		94,200		2,108,196
Kensey Nash Corp.(a) (b)		14,900		473,820
Kyphon, Inc.(a) (b)		29,870		1,206,748
Mentor Corp.(b)		5,890		287,844
Sirona Dental Systems, Inc.(b)		11,620		447,486
Thoratec Corp.(a)		17,010		299,036
Vital Images, Inc.(a)		25,000		870,000
				6,994,906
Metals & Mining — 0.8%
Brush Engineered Materials, Inc.(a)		12,720		429,554
Cleveland-Cliffs, Inc.		8,900		431,116
CommScope, Inc.(a) (b)		6,400		195,072
Foundation Coal Holdings, Inc.		11,300		358,888
				1,414,630
Pharmaceuticals — 3.6%
Alkermes, Inc.(a)		40,020		535,067
Amylin Pharmaceuticals, Inc.(a) (b)		12,570		453,400
Arena Pharmaceuticals, Inc.(a) (b)		14,750		190,423
Atherogenics, Inc.(a) (b)		13,920		137,947
Bare Escentuals, Inc.(a) (b)		38,500		1,196,195
Charles River Laboratories International, Inc.(a)		8,320		359,840
CV Therapeutics, Inc.(a) (b)		18,400		256,864
Digene Corp.(a)		11,250		539,100
Encysive Pharmaceuticals, Inc.(a) (b)		14,150		59,572
Herbalife Ltd.(a)		13,420		538,947
The Medicines Co.(a)		22,820		723,850
Vertex Pharmaceuticals, Inc.(a)		5,830		218,159
Visicu Inc.(a) (b)		60,900		682,080
Zymogenetics, Inc.(a) (b)		10,300		160,371
				6,051,815

	Number of Shares		Market Value
Prepackaged Software — 9.0%
Activision, Inc.(a)		26,520	$	457,205
Ansys, Inc.(a)		15,610		678,879
Blackbaud, Inc.		115,400		3,000,400
Blackboard, Inc.(a) (b)		76,500		2,298,060
Cerner Corp.(a) (b)		46,850		2,131,675
EPIQ Systems, Inc.(a) (b)		28,990		491,960
Kenexa Corp.(a) (b)		18,405		612,150
MicroStrategy, Inc. Cl. A(a)		8,100		923,481
Red Hat, Inc.(a) (b)		66,310		1,525,130
Take-Two Interactive Software, Inc.(a) (b)		28,200		500,832
THQ, Inc.(a) (b)		9,735		316,582
Transaction Systems Architects, Inc. Cl. A(a)		10,800		351,756
Verint Systems, Inc.(a)		12,730		436,384
WebEx Communications, Inc.(a)		45,700		1,594,473
				15,318,967
Restaurants — 0.9%
California Pizza Kitchen, Inc.(a)		16,840		560,940
Denny's Corp.(a)		85,200		401,292
P.F. Chang's China Bistro, Inc.(a) (b)		6,200		237,956
RARE Hospitality International, Inc.(a)		11,000		362,230
				1,562,418
Retail — 4.1%
Borders Group, Inc.(b)		20,800		464,880
Dick's Sporting Goods, Inc.(a) (b)		6,850		335,582
GameStop Corp. Cl. B(a)		7,570		414,533
Marvel Entertainment, Inc.(a) (b)		10,270		276,366
O'Reilly Automotive, Inc.(a)		57,990		1,859,159
Priceline.com, Inc.(a) (b)		13,530		590,043
Retail Ventures, Inc.(a) (b)		21,050		400,792
Stamps.com, Inc.(a)		92,750		1,460,813
Stride Rite Corp.		5,300		79,924
Zumiez, Inc.(a) (b)		36,300		1,072,302
				6,954,394
Telephone Utilities — 1.3%
Equinix, Inc.(a) (b)		5,240		396,249
General Communication, Inc. Cl. A(a)		29,300		460,889
Leap Wireless International, Inc.(a)		11,880		706,504
NeuStar, Inc. Cl. A(a) (b)		22,490		729,576
				2,293,218

	Number of Shares		Market Value
Transportation — 4.4%
American Commercial Lines, Inc.(a) (b)		11,570	$	757,951
Con-way, Inc.		9,070		399,443
Florida East Coast Industries		5,920		352,832
GATX Corp.		8,600		372,638
J.B. Hunt Transport Services, Inc.		71,500		1,485,055
Kansas City Southern(a) (b)		106,375		3,082,748
Landstar System, Inc.		16,120		615,462
YRC Worldwide, Inc.(a)		10,400		392,392
				7,458,521
TOTAL EQUITIES (Cost $131,756,943)				154,124,111
MUTUAL FUND — 2.5%
Financial Services — 2.5%
iShares Russell 2000 Growth Index Fund(b)		53,340		4,195,191
TOTAL MUTUAL FUND (Cost $4,010,625)				4,195,191
TOTAL LONG TERM INVESTMENTS (Cost $135,767,568)				158,319,302
	Principal Amount
SHORT-TERM INVESTMENTS — 35.9%
Cash Equivalents — 28.6%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	1,209,649		1,209,649
American Beacon Money Market Fund(c)		417,759		417,759
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		1,767,948		1,767,948
Bank of America 5.270% 01/09/2007		930,499		930,499
Bank of America 5.310% 03/08/2007		930,499		930,499
Bank of America 5.320% 02/16/2007		279,150		279,150
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		558,299		558,299

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007	$	1,860,999	$	1,860,999
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		1,209,649		1,209,649
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		465,249		465,249
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		930,499		930,499
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		930,499		930,499
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		279,150		279,150
BGI Institutional Money Market Fund(c)		879,037		879,037
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		1,395,748		1,395,748
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		465,249		465,249
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		465,249		465,249
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		1,712,118		1,712,118
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		1,395,748		1,395,748
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		465,249		465,249
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		930,499		930,499
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		930,499		930,499
Dreyfus Cash Management Plus Money Market Fund(c)		332,372		332,372
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		155,848		155,848

	Principal Amount		Market Value
Federal Home Loan Bank Discount Note 5.207% 01/19/2007	$	242,816	$	242,816
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		930,499		930,499
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		372,199		372,199
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		1,395,748		1,395,748
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		1,395,748		1,395,748
Freddie Mac Discount Note 5.231% 01/23/2007		370,315		370,315
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		465,249		465,249
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		833,581		833,581
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		1,302,699		1,302,699
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		930,499		930,499
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		744,399		744,399
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		1,395,748		1,395,748
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		558,299		558,299
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		2,326,247		2,326,247
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		837,450		837,450

	Principal Amount		Market Value
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007	$	930,500	$	930,500
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		1,377,139		1,377,139
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		930,500		930,500
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		186,101		186,101
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		465,250		465,250
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		744,400		744,400
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		1,860,999		1,860,999
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		1,395,748		1,395,748
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		372,199		372,199
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		3,209,874		3,209,874
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		483,859		483,859
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		1,116,598		1,116,598
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		558,299		558,299
				48,630,426

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Repurchase Agreement — 7.3%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)	$	12,376,432	$	12,376,432
TOTAL SHORT-TERM INVESTMENTS (Cost $61,006,858)				61,006,858
TOTAL INVESTMENTS — 129.1% (Cost $196,774,426)(f)				219,326,160
Other Assets/(Liabilities) — (29.1%)				(49,385,482	)
NET ASSETS — 100.0%			$	169,940,678

Notes to Portfolio of Investments

ADR - American Depository Receipt

CAD - Canadian Dollar

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $12,381,245. Collateralized by a U.S. Government Agency obligation with a rate of 4.621%, maturity date of 08/01/2035, and aggregate market value, including accrued interest, of $12,995,253.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Emerging Growth Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 97.6%
COMMON STOCK — 97.6%
Advertising — 0.3%
Marchex, Inc. Cl. B(a)		3,600	$	48,168
Air Transportation — 1.8%
Copa Holdings SA Cl. A		5,600		260,736
Apparel, Textiles & Shoes — 9.8%
Carter's, Inc.(a)		2,100		53,550
Charlotte Russe Holding, Inc.(a)		6,800		209,100
Coach, Inc.(a)		4,000		171,840
Crocs, Inc.(a)		8,000		345,600
Deckers Outdoor Corp.(a)		1,600		95,920
Guess?, Inc.(a)		4,400		279,092
The Gymboree Corp.(a)		2,000		76,320
Under Armour, Inc. Cl. A(a)		3,000		151,350
Volcom, Inc.(a)		2,100		62,097
				1,444,869
Automotive & Parts — 2.6%
Force Protection, Inc.(a)		22,000		383,020
Banking, Savings & Loans — 3.1%
Dollar Financial Corp.(a)		8,100		225,666
Euronet Worldwide, Inc.(a)		2,300		68,287
Midwest Banc Holdings, Inc.		2,600		61,750
Signature Bank(a)		2,100		65,058
Sterling Financial Corp.		1,200		40,572
				461,333
Building Materials & Construction — 0.5%
Conceptus, Inc.(a)		3,400		72,386
Chemicals — 1.4%
Albemarle Corp.		2,800		201,040
Commercial Services — 7.5%
The Advisory Board Co.(a)		1,400		74,956
Akamai Technologies, Inc.(a)		2,300		122,176
Clean Harbors, Inc.(a)		900		43,569
Huron Consulting Group, Inc.(a)		2,300		104,282
Keryx Biopharmaceuticals(a)		4,400		58,520
PeopleSupport, Inc.(a)		12,500		263,125
Portfolio Recovery Associates, Inc.(a)		2,100		98,049
TeleTech Holdings, Inc.(a)		9,700		231,636
Watson Wyatt Worldwide, Inc.		2,200		99,330
				1,095,643

	Number of Shares		Market Value
Communications — 4.4%
Allot Communications Ltd.(a)		4,472	$	52,367
Occam Networks Inc.(a)		1,100		18,150
Polycom, Inc.(a)		9,200		284,372
Powerwave Technologies, Inc.(a)		11,300		72,885
Symmetricom, Inc.(a)		6,300		56,196
Syntax-Brillian Corp.(a)		18,200		156,338
				640,308
Computers & Information — 4.8%
Cray, Inc.(a)		3,200		38,016
Emulex Corp.(a)		3,200		62,432
Rackable Systems, Inc.(a)		2,800		86,716
Sigma Designs, Inc.(a)		10,400		264,680
SimpleTech, Inc.(a)		11,200		142,016
VeriFone Holdings, Inc.(a)		3,100		109,740
				703,600
Consumer Services — 0.7%
Icon PLC Sponsored ADR (United Kingdom)(a)		2,700		101,790
Cosmetics & Personal Care — 0.2%
Physicians Formula Holdings(a)		1,800		33,642
Data Processing & Preparation — 0.3%
FactSet Research Systems, Inc.		800		45,184
Electrical Equipment & Electronics — 6.7%
Ceradyne, Inc.(a)		2,100		118,650
Cymer, Inc.(a)		1,300		57,135
ESCO Technologies, Inc.(a)		1,500		68,160
Finisar Corp.(a)		17,000		54,910
First Solar, Inc.(a)		1,600		47,680
Hexcel Corp.(a)		2,300		40,043
Jinpan International Ltd.		5,800		140,012
Lincoln Electric Holdings, Inc.		2,100		126,882
Microsemi Corp.(a)		3,900		76,635
SiRF Technology Holdings, Inc.(a)		2,000		51,040
Tessera Technologies, Inc.(a)		1,800		72,612
Trident Microsystems, Inc.(a)		3,000		54,540
Varian Semiconductor Equipment Associates, Inc.(a)		1,600		72,832
				981,131

	Number of Shares		Market Value
Energy — 1.4%
Basic Energy Services, Inc.(a)		3,400	$	83,810
Cal Dive International Inc.(a)		5,700		71,535
CARBO Ceramics, Inc.		1,500		56,055
				211,400
Entertainment & Leisure — 1.4%
Life Time Fitness, Inc.(a)		1,700		82,467
Macrovision Corp.(a)		1,600		45,216
WMS Industries, Inc.(a)		2,100		73,206
				200,889
Environmental Controls — 0.6%
Input/Output, Inc.(a)		6,500		88,595
Financial Services — 1.6%
First Cash Financial Services, Inc.(a)		5,500		142,285
RAIT Financial Trust		2,600		89,648
				231,933
Forest Products & Paper — 3.6%
Greif, Inc. Cl. A		2,200		260,480
Rock-Tenn Co. Cl. A		9,700		262,967
				523,447
Healthcare — 1.0%
Allscripts Healthcare Solutions, Inc.(a)		5,500		148,445
Heavy Machinery — 0.3%
Basin Water, Inc.(a)		7,200		48,744
Home Construction, Furnishings & Appliances — 2.1%
Desarrolladora Homex S.A. ADR(a)		3,300		194,931
Tempur-Pedic International, Inc.(a)		3,400		69,564
Williams Scotsman International, Inc.(a)		2,200		43,164
				307,659
Information Retrieval Services — 4.6%
CDC Corp.-Cl. A(a)		33,300		316,350
Digital River, Inc.(a)		3,600		200,844
Perficient Inc. Commercial Services(a)		9,600		157,536
				674,730
Insurance — 5.5%
American Equity Investment Life Holding Co.		2,700		35,181
Amerisafe, Inc.(a)		7,444		115,084

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Emerging Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Delphi Financial Group, Inc. Cl. A		2,500	$	101,150
Tower Group, Inc.		4,600		142,922
United Fire & Casualty Co.		1,800		63,450
WellCare Health Plans, Inc.(a)		5,000		344,500
				802,287
Machinery & Components — 1.4%
Robbins & Myers, Inc.		4,500		206,640
Medical Supplies — 2.4%
Align Technology, Inc.(a)		2,700		37,719
Home Diagnostics, Inc.(a)		2,000		21,200
Immucor, Inc.(a)		2,200		64,306
Micrus Endovascular Corp.(a)		5,100		97,308
Zoll Medical Corp.(a)		2,400		139,776
				360,309
Metals & Mining — 3.8%
Brush Engineered Materials, Inc.(a)		4,300		145,211
Dynamic Materials Corp.		4,200		118,020
Gulf Island Fabrication, Inc.		5,500		202,950
NCI Building Systems, Inc.(a)		1,700		87,975
				554,156
Pharmaceuticals — 8.2%
American Oriental Bioengineering, Inc.(a)		16,500		192,555
Cardiome Pharma Corp.(a)		2,300		25,645
Combinatorx, Inc.(a)		1,800		15,588
CV Therapeutics, Inc.(a)		4,100		57,236
Digene Corp.(a)		1,600		76,672
The Medicines Co.(a)		6,600		209,352
MGI Pharma, Inc.(a)		3,300		60,753
Nastech Pharmaceutical Co., Inc.(a)		6,500		98,345
Nektar Therapeutics(a)		2,500		38,025
Omrix Biopharmaceuticals Inc.(a)		5,500		166,430
PDL BioPharma, Inc.(a)		3,900		78,546
Rigel Pharmaceuticals, Inc.(a)		4,600		54,602
Telik, Inc.(a)		5,500		24,365
United Therapeutics Corp.(a)		2,100		114,177
				1,212,291

	Number of Shares		Market Value
Prepackaged Software — 4.4%
Emageon, Inc.(a)		4,000	$	61,440
Imergent Inc.(a)		5,100		146,064
Informatica Corp.(a)		3,000		36,630
Interactive Intelligence, Inc.(a)		7,300		163,666
Interwoven, Inc.(a)		11,000		161,370
TIBCO Software, Inc.(a)		7,600		71,744
				640,914
Restaurants — 1.6%
BJ's Restaurants, Inc.(a)		3,200		64,672
Chipotle Mexican Grill, Inc. Cl. A(a)		1,700		96,900
Sonic Corp.(a)		3,200		76,640
				238,212
Retail — 7.5%
Big Lots, Inc.(a)		5,500		126,060
Cash America International, Inc.		2,700		126,630
Dick's Sporting Goods, Inc.(a)		3,800		186,162
Guitar Center, Inc.(a)		1,700		77,282
Hibbett Sporting Goods, Inc.(a)		3,500		106,855
Nutri/System, Inc.(a)		1,600		101,424
Priceline.com, Inc.(a)		7,800		340,158
Tractor Supply Co.(a)		900		40,239
				1,104,810
Telephone Utilities — 1.4%
Golden Telecom, Inc.		4,500		210,780
Transportation — 0.7%
Knight Transportation, Inc.		4,000		68,200
Universal Truckload Services, Inc.(a)		1,600		38,000
				106,200
TOTAL EQUITIES (Cost $12,887,338)				14,345,291

	Principal Amount		Market Value
SHORT-TERM INVESTMENTS — 3.9%
Repurchase Agreement — 3.9%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(b)	$	578,515	$	578,515
TOTAL SHORT-TERM INVESTMENTS (Cost $578,515)				578,515
TOTAL INVESTMENTS — 101.5% (Cost $13,465,853)(c)				14,923,806
Other Assets/ (Liabilities) — (1.5%)				(221,068	)
NET ASSETS — 100.0%			$	14,702,738

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) Maturity value of $578,740. Collateralized by a U.S. Government Agency obligation with a rate of 7.625%, maturity date of 11/25/2012, and an aggregate market value, including accrued interest, of $607,440.

The accompanying notes are an integral part of the financial statements.

[This page is intentionally left blank.]

MML Series Investment Fund – Financial Statements

Statement of Assets and Liabilities

December 31, 2006

	MML Large Cap Value Fund			MML Equity Index Fund			MML Growth Equity Fund
Assets:
Investments, at value (Note 2)(a)	$	207,948,035		$	393,288,950		$	19,759,256
Short-term investments, at value (Note 2)(b)		26,931,221			26,008,219			1,910,398
Total investments(c)		234,879,256			419,297,169			21,669,654
Cash		35			-			-
Foreign currency, at value:(d)		33,227			-			-
Receivables from:
Investments sold		-			65,129			-
Investment Adviser (Note 3)		-			11,132			9,731
Fund shares sold		128,912			57,831			20,636
Interest and dividends		263,065			603,095			23,787
Variation margin on open futures contracts (Note 2)		-			-			-
Foreign taxes withheld		1,485			-			16
Total assets		235,305,980			420,034,356			21,723,824
Liabilities:
Payables for:
Investments purchased		1,797,646			-			-
Fund shares repurchased		8,675			54,519			11,608
Variation margin on open futures contracts (Note 2)		-			35,640			-
Securities on loan (Note 2)		16,462,414			17,179,208			1,472,669
Directors' fees and expenses (Note 3)		39,491			122,346			9,379
Affiliates (Note 3):
Investment management fees		139,683			34,050			13,795
Administration fees		-			44,008			-
Due to custodian		-			-			-
Accrued expense and other liabilities		37,351			39,901			34,311
Total liabilities		18,485,260			17,509,672			1,541,762
Net assets	$	216,820,720		$	402,524,684		$	20,182,062
Net assets consist of:
Paid-in capital	$	175,313,324		$	326,881,771		$	42,605,152
Undistributed net investment income (distributions in excess of net investment income)		(36,534	)		(61,844	)		(4,473	)
Accumulated net realized gain (loss) on investments		(4,513,460	)		(16,218,804	)		(23,447,460	)
Net unrealized appreciation (depreciation) on investments		46,057,390			91,923,561			1,028,843
Net assets	$	216,820,720		$	402,524,684		$	20,182,062
Shares outstanding		16,935,530			-			2,734,996
Net asset value, offering price and redemption price per share	$	12.80		$	-		$	7.38
(a) Cost of investments - unaffiliated issuers:	$	161,890,596		$	301,382,715		$	18,730,413
(b) Cost of short-term investments:	$	26,931,221		$	26,008,219		$	1,910,398
(c) Securities on loan with market value of:	$	15,991,356		$	16,587,040		$	1,430,424
(d) Cost of foreign currency:	$	33,240		$	-		$	-

The accompanying notes are an integral part of the financial statements.

	MML OTC 100 Fund			MML Small Cap Growth Equity Fund			MML Emerging Growth Fund
Assets:
Investments, at value (Note 2)(a)	$	8,219,441		$	158,319,302		$	14,345,291
Short-term investments, at value (Note 2)(b)		220,913			61,006,858			578,515
Total investments(c)		8,440,354			219,326,160			14,923,806
Cash		-			-			6
Foreign currency, at value:(d)		-			16,813			-
Receivables from:
Investments sold		-			822,624			24,425
Investment Adviser (Note 3)		10,413			-			9,696
Fund shares sold		61,801			133,953			6,054
Interest and dividends		4,937			55,986			4,793
Variation margin on open futures contracts (Note 2)		418			-			-
Foreign taxes withheld		-			133			-
Total assets		8,517,923			220,355,669			14,968,780
Liabilities:
Payables for:
Investments purchased		-			1,495,038			207,981
Fund shares repurchased		2,188			66,540			8,162
Variation margin on open futures contracts (Note 2)		-			-			-
Securities on loan (Note 2)		-			48,630,426			-
Directors' fees and expenses (Note 3)		4,640			31,433			5,607
Affiliates (Note 3):
Investment management fees		3,299			152,613			13,031
Administration fees		-			-			-
Due to custodian		49			-			-
Accrued expense and other liabilities		34,111			38,941			31,261
Total liabilities		44,287			50,414,991			266,042
Net assets	$	8,473,636		$	169,940,678		$	14,702,738
Net assets consist of:
Paid-in capital	$	15,786,101		$	149,740,520		$	20,053,979
Undistributed net investment income (distributions in excess of net investment income)		(2,651	)		(28,288	)		(2,583	)
Accumulated net realized gain (loss) on investments		(8,827,788	)		(2,323,345	)		(6,806,611	)
Net unrealized appreciation (depreciation) on investments		1,517,974			22,551,791			1,457,953
Net assets	$	8,473,636		$	169,940,678		$	14,702,738
Shares outstanding		1,898,608			10,573,490			2,338,025
Net asset value, offering price and redemption price per share	$	4.46		$	16.07		$	6.29
(a) Cost of investments - unaffiliated issuers:	$	6,695,205		$	135,767,568		$	12,887,338
(b) Cost of short-term investments:	$	220,913		$	61,006,858		$	578,515
(c) Securities on loan with market value of:	$	-		$	46,616,475		$	-
(d) Cost of foreign currency:	$	-		$	16,810		$	-

MML Series Investment Fund – Financial Statements (Continued)

Statement of Assets and Liabilities

December 31, 2006

	MML Large Cap Value Fund		MML Equity Index Fund		MML Growth Equity Fund
Class I shares:
Net assets	$	-	$	85,287,835	$	-
Shares outstanding		-		4,887,351		-
Net asset value and redemption price per share	$	-	$	17.45	$	-
Class II shares:
Net assets	$	-	$	189,688,003	$	-
Shares outstanding		-		10,877,526		-
Net asset value, offering price and redemption price per share	$	-	$	17.44	$	-
Class III shares:
Net assets	$	-	$	127,548,846	$	-
Shares outstanding		-		7,326,757		-
Net asset value, offering price and redemption price per share	$	-	$	17.41	$	-

The accompanying notes are an integral part of the financial statements.

MML
OTC 100
Fund

MML
Small Cap
Growth Equity
Fund

MML
Emerging
Growth
Fund

Class I shares:

Net assets

Shares outstanding

Net asset value and redemption price per share

Class II shares:

Net assets

Shares outstanding

Net asset value, offering price and redemption price per share

Class III shares:

Net assets

Shares outstanding

Net asset value, offering price and redemption price per share

MML Series Investment Fund – Financial Statements (Continued)

Statement of Operations

For the Year Ended December 31, 2006

	MML Large Cap Value Fund			MML Equity Index Fund			MML Growth Equity Fund
Investment Income (Note 2):
Dividends(a)	$	2,497,484		$	7,420,670		$	255,113
Interest		269,521			252,883			36,456
Securities lending net income		11,850			24,688			1,557
Total investment income		2,778,855			7,698,241			293,126
Expenses (Note 3):
Investment management fees (Note 3)		1,313,099			387,367			160,036
Custody fees		31,851			69,880			24,389
Trustee reporting		2,100			2,171			2,100
Audit and legal fees		44,586			59,605			38,040
Proxy fees		818			757			413
Shareholder reporting fees		3,548			10,886			584
Directors' fees (Note 3)		33,894			75,140			3,659
		1,429,896			605,806			229,221
Administration fees (Note 3)
Class I		-			227,404			-
Class II		-			340,050			-
Class III
Total expenses		1,429,896			1,239,549			229,221
Expenses waived (Note 3)		-			(24,794	)		(47,179	)
Class II Administration fees waived (Note 3)		-			(89,491	)		-
Class III Administration fees waived (Note 3)		-			(66,289	)		-
Net expenses		1,429,896			1,058,975			182,042
Net investment income (loss)		1,348,959			6,639,266			111,084
Realized and unrealized gain (loss):
Net realized gain (loss) on:
Investment transactions		1,462,229			2,230,214			728,178
Closed futures contracts		-			286,467			(9,000	)
Foreign currency transactions		(14,348	)		-			-
Net realized gain (loss)		1,447,881			2,516,681			719,178
Net change in unrealized appreciation (depreciation) on:
Investments		21,474,914			46,873,636			(470,408	)
Open futures contracts		-			45,616			3,800
Translation of assets and liabilities in foreign currencies		(48	)		-			-
Net unrealized appreciation (depreciation)		21,474,866			46,919,252			(466,608	)
Net realized and unrealized gain (loss)		22,922,747			49,435,933			252,570
Net increase (decrease) in net assets resulting from operations	$	24,271,706		$	56,075,199		$	363,654
(a) Net of withholding tax of:	$	9,077		$	-		$	-

The accompanying notes are an integral part of the financial statements.

	MML OTC 100 Fund			MML Small Cap Growth Equity Fund			MML Emerging Growth Fund
Investment Income (Note 2):
Dividends(a)	$	44,470		$	458,742		$	19,296
Interest		16,115			480,423			27,861
Securities lending net income		-			91,098			-
Total investment income		60,585			1,030,263			47,157
Expenses (Note 3):
Investment management fees (Note 3)		39,289			1,434,583			149,238
Custody fees		11,850			62,689			27,539
Trustee reporting		2,100			2,099			2,100
Audit and legal fees		38,830			43,534			37,884
Proxy fees		414			818			818
Shareholder reporting fees		269			2,769			376
Directors' fees (Note 3)		1,620			26,734			2,607
		94,372			1,573,226			220,562
Administration fees (Note 3)
Class I		-			-			-
Class II		-			-			-
Class III	66,289
Total expenses		94,372			1,573,226			220,562
Expenses waived (Note 3)		(45,478	)		-			(55,685	)
Class II Administration fees waived (Note 3)		-			-			-
Class III Administration fees waived (Note 3)		-			-			-
Net expenses		48,894			1,573,226			164,877
Net investment income (loss)		11,691			(542,963	)		(117,720	)
Realized and unrealized gain (loss):
Net realized gain (loss) on:
Investment transactions		487,441			9,375,247			725,780
Closed futures contracts		(10,521	)		-			-
Foreign currency transactions		-			1,584			-
Net realized gain (loss)		476,920			9,376,831			725,780
Net change in unrealized appreciation (depreciation) on:
Investments		89,235			3,069,822			123,732
Open futures contracts		(1,571	)		-			-
Translation of assets and liabilities in foreign currencies		93			57			-
Net unrealized appreciation (depreciation)		87,757			3,069,879			123,732
Net realized and unrealized gain (loss)		564,677			12,446,710			849,512
Net increase (decrease) in net assets resulting from operations	$	576,368		$	11,903,747		$	731,792
(a) Net of withholding tax of:	$	219		$	2,127		$	15

MML Series Investment Fund – Financial Statements (Continued)

Statement of Changes in Net Assets

	MML Large Cap Value Fund						MML Equity Index Fund
	Year Ended December 31, 2006			Year Ended December 31, 2005			Year Ended December 31, 2006			Year Ended December 31, 2005
Increase (Decrease) in Net Assets:
Operations:
Net investment income (loss)	$	1,348,959		$	825,193		$	6,639,266		$	6,249,807
Net realized gain (loss) on investment transactions		1,447,881			(263,759	)		2,516,681			(3,764,903	)
Net change in unrealized appreciation (depreciation) on investments		21,474,866			9,376,736			46,919,252			14,934,575
Net increase (decrease) in net assets resulting from operations		24,271,706			9,938,170			56,075,199			17,419,479
Distributions to shareholders (Note 2)
From net investment income:		(1,346,138	)		(827,092	)		-			-
Class I		-			-			(1,256,660	)		(1,060,658	)
Class II		-			-			(3,050,128	)		(2,843,739	)
Class III		-			-			(2,219,155	)		(2,331,952	)
Total distributions from net investment income		(1,346,138	)		(827,092	)		(6,525,943	)		(6,236,349	)
Tax return of capital		-			(32,205	)		-			-
Class I		-			-			-			(5,900	)
Class II		-			-			-			(13,202	)
Class III		-			-			-			(10,069	)
Total tax return of capital		-			(32,205	)		-			(29,171	)
Net fund share transactions (Note 5)		60,138,687			41,779,858			-			-
Class I					-			(576,207	)		(11,332,021	)
Class II		-			-			(15,753,838	)		(6,849,410	)
Class III		-			-			(26,391,577	)		(3,611,884	)
Increase (decrease) in net assets from fund share transactions		60,138,687			41,779,858			(42,721,622	)		(21,793,315	)
Total increase (decrease) in net assets		83,064,255			50,858,731			6,827,634			(10,639,356	)
Net assets:
Beginning of year		133,756,465			82,897,734			395,697,050			406,336,406
End of year	$	216,820,720		$	133,756,465		$	402,524,684		$	395,697,050
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(36,534	)	$	(2,618	)	$	(61,844	)	$	(57,938	)

The accompanying notes are an integral part of the financial statements.

	MML Growth Equity Fund
	Year Ended December 31, 2006			Year Ended December 31, 2005
Increase (Decrease) in Net Assets:
Operations:
Net investment income (loss)	$	111,084		$	89,288
Net realized gain (loss) on investment transactions		719,178			879,748
Net change in unrealized appreciation (depreciation) on investments		(466,608	)		(125,356	)
Net increase (decrease) in net assets resulting from operations		363,654			843,680
Distributions to shareholders (Note 2)
From net investment income:		(92,922	)		(92,443	)
Class I		-			-
Class II		-			-
Class III		-			-
Total distributions from net investment income		(92,922	)		(92,443	)
Tax return of capital		-			-
Class I		-			-
Class II		-			-
Class III		-			-
Total tax return of capital		-			-
Net fund share transactions (Note 5)		(1,330,493	)		(2,403,046	)
Class I		-			-
Class II		-			-
Class III		-			-
Increase (decrease) in net assets from fund share transactions		(1,330,493	)		(2,403,046	)
Total increase (decrease) in net assets		(1,059,761	)		(1,651,809	)
Net assets:
Beginning of year		21,241,823			22,893,632
End of year	$	20,182,062		$	21,241,823
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(4,473	)	$	(7,532	)

MML Series Investment Fund – Financial Statements (Continued)

Statement of Changes in Net Assets

	MML OTC 100 Fund						MML Small Cap Growth Equity Fund
	Year Ended December 31, 2006			Year Ended December 31, 2005			Year Ended December 31, 2006			Year Ended December 31, 2005
Increase (Decrease) in Net Assets:
Operations:
Net investment income (loss)	$	11,691		$	2,847		$	(542,963	)	$	(366,202	)
Net realized gain (loss) on investment transactions		476,920			923,583			9,376,831			4,654,510
Net change in unrealized appreciation (depreciation) on investments		87,757			(878,675	)		3,069,879			5,548,935
Net increase (decrease) in net assets resulting from operations		576,368			47,755			11,903,747			9,837,243
Distributions to shareholders (Note 2)
From net investment income:		(4,218	)		(4,405	)		-			-
Net fund share transactions (Note 5)		(1,594,989	)		(2,769,904	)		53,028,893			33,161,807
Total increase (decrease) in net assets		(1,022,839	)		(2,726,554	)		64,932,640			42,999,050
Net assets:
Beginning of year		9,496,475			12,223,029			105,008,038			62,008,988
End of year	$	8,473,636		$	9,496,475		$	169,940,678		$	105,008,038
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(2,651	)	$	(1,561	)	$	(28,288	)	$	(17,038	)

The accompanying notes are an integral part of the financial statements.

	MML Emerging Growth Fund
	Year Ended December 31, 2006			Year Ended December 31, 2005
Increase (Decrease) in Net Assets:
Operations:
Net investment income (loss)	$	(117,720	)	$	(121,306	)
Net realized gain (loss) on investment transactions		725,780			898,014
Net change in unrealized appreciation (depreciation) on investments		123,732			(656,201	)
Net increase (decrease) in net assets resulting from operations		731,792			120,507
Distributions to shareholders (Note 2)
From net investment income:		-			-
Net fund share transactions (Note 5)		163,999			(449,466	)
Total increase (decrease) in net assets		895,791			(328,959	)
Net assets:
Beginning of year		13,806,947			14,135,906
End of year	$	14,702,738		$	13,806,947
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(2,583	)	$	(4,337	)

MML Large Cap Value Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Year ended 12/31/06			Year ended 12/31/05††			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	11.27		$	10.38		$	9.35		$	7.26		$	8.73
Income (loss) from investment operations:
Net investment income (loss)		0.09	***		0.09	***		0.06			0.06			0.05
Net realized and unrealized gain (loss) on investments		1.52			0.87			1.04			2.09			(1.47	)
Total income (loss) from investment operations		1.61			0.96			1.10			2.15			(1.42	)
Less distributions to shareholders:
From net investment income		(0.08	)		(0.07	)		(0.07	)		(0.06	)		(0.05	)
Tax return of capital		-			(0.00	)†		-			-			(0.00	)†
Total distributions		(0.08	)		(0.07	)		(0.07	)		(0.06	)		(0.05	)
Net asset value, end of year	$	12.80		$	11.27		$	10.38		$	9.35		$	7.26
Total Return(a)		14.18	%		9.38	%		11.79	%		29.60	%		(16.23	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	216,821		$	133,756		$	82,898		$	57,275		$	33,919
Ratio of expenses to average daily net assets:
Before expense waiver		0.85	%		0.89	%		0.87	%		0.92	%		0.92	%
After expense waiver		N/A			N/A			0.87	% #(b)		0.90	% #(b)		0.90	% #(b)
Net investment income (loss) to average daily net assets		0.80	%		0.81	%		0.78	%		0.79	%		0.61	%
Portfolio turnover rate		10	%		3	%		3	%		7	%		32	%

*** Per share amount calculated on the average shares method.

† Tax return of capital is less than $0.01 per share.

†† Effective January 1, 2005, rebated brokerage commissions are included with realized gain and loss on investment transactions. Prior to January 1, 2005, these amounts were presented as a reduction of expenses. Prior year amounts have not been restated to reflect this change due to immateriality. (See Note 3).

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

(a) Total Return information shown in the Financial Highlights table does not reflect expenses that apply at the separate account level or to related insurance products. Inclusion of these charges would reduce the total return figures for all periods shown.

(b) The Fund has entered into agreements with certain brokers to rebate a portion of brokerage commissions. The rebated commissions are used to reduce operating expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

Class I

	Year ended 12/31/06			Year ended 12/31/05			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	15.36		$	14.90		$	13.71		$	10.83		$	14.14
Income (loss) from investment operations:
Net investment income (loss)		0.25	***		0.21	***		0.22	***		0.16	***		0.14	***
Net realized and unrealized gain (loss) on investments		2.10			0.47			1.21			2.88			(3.31	)
Total income (loss) from investment operations		2.35			0.68			1.43			3.04			(3.17	)
Less distributions to shareholders:
From net investment income		(0.26	)		(0.22	)		(0.24	)		(0.16	)		(0.14	)
Tax return of capital		-			(0.00	)†		-			-			-
Total distributions		(0.26	)	��	(0.22	)		(0.24	)		(0.16	)		(0.14	)
Net asset value, end of year	$	17.45		$	15.36		$	14.90		$	13.71		$	10.83
Total Return(a)		15.30	%		4.53	%		10.42	%		28.08	%		(22.46	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	85,288		$	76,012		$	85,138		$	78,597		$	58,454
Ratio of expenses to average daily net assets:
Before expense waiver		0.46	%		0.48	%		0.44	%		0.44	%		0.44	%
After expense waiver		0.45	% #		0.45	% #		N/A			N/A			N/A
Net investment income (loss) to average daily net assets		1.54	%		1.42	%		1.60	%		1.37	%		1.16	%
Portfolio turnover rate		4	%		4	%		4	%		5	%		6	%

Class II

	Year ended 12/31/06			Year ended 12/31/05			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	15.34		$	14.89		$	13.70		$	10.82		$	14.13
Income (loss) from investment operations:
Net investment income (loss)		0.28	***		0.24	***		0.25	***		0.19	***		0.17	***
Net realized and unrealized gain (loss) on investments		2.10			0.45			1.20			2.87			(3.32	)
Total income (loss) from investment operations		2.38			0.69			1.45			3.06			(3.15	)
Less distributions to shareholders:
From net investment income		(0.28	)		(0.24	)		(0.26	)		(0.18	)		(0.16	)
Tax return of capital		-			(0.00	)†		-			-			-
Total distributions		(0.28	)		(0.24	)		(0.26	)		(0.18	)		(0.16	)
Net asset value, end of year	$	17.44		$	15.34		$	14.89		$	13.70		$	10.82
Total Return(a)		15.54	%		4.65	%		10.60	%		28.31	%		(22.29	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	189,688		$	182,390		$	184,271		$	188,869		$	125,942
Ratio of expenses to average daily net assets:
Before expense waiver		0.35	%		0.37	%		0.33	%		0.33	%		0.33	%
After expense waiver		0.29	% #		0.29	% #		0.27	% #		0.25	% #		0.26	% #
Net investment income (loss) to average daily net assets		1.70	%		1.59	%		1.75	%		1.56	%		1.37	%
Portfolio turnover rate		4	%		4	%		4	%		5	%		6	%

† Tax return of capital is less than $0.01 per share.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML Equity Index Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

Class III

	Year ended 12/31/06			Year ended 12/31/05			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	15.31		$	14.86		$	13.67		$	10.80		$	14.10
Income (loss) from investment operations:
Net investment income (loss)		0.30	***		0.26	***		0.26	***		0.20	***		0.18	***
Net realized and unrealized gain (loss) on investments		2.11			0.46			1.21			2.86			(3.31	)
Total income (loss) from investment operations		2.41			0.72			1.47			3.06			(3.13	)
Less distributions to shareholders:
From net investment income		(0.31	)		(0.27	)		(0.28	)		(0.19	)		(0.17	)
Tax return of capital		-			(0.00	)†		-			-			-
Total distributions		(0.31	)		(0.27	)		(0.28	)		(0.19	)		(0.17	)
Net asset value, end of year	$	17.41		$	15.31		$	14.86		$	13.67		$	10.80
Total Return(a)		15.72	%		4.80	%		10.77	%		28.38	%		(22.18	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	127,549		$	137,295		$	136,927		$	137,646		$	115,070
Ratio of expenses to average daily net assets:
Before expense waiver		0.21	%		0.23	%		0.19	%		0.19	%		0.19	%
After expense waiver		0.15	% #		0.15	% #		0.14	% #		0.14	% #		0.14	% #
Net investment income (loss) to average daily net assets		1.83	%		1.72	%		1.88	%		1.67	%		1.46	%
Portfolio turnover rate		4	%		4	%		4	%		5	%		6	%

† Tax return of capital is less than $0.01 per share.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML Growth Equity Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Year ended 12/31/06			Year ended 12/31/05†††			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	7.27		$	7.03		$	6.74		$	5.48		$	7.59
Income (loss) from investment operations:
Net investment income (loss)		0.04	***		0.03			0.03			0.00	†		(0.01	)
Net realized and unrealized gain (loss) on investments		0.10			0.24			0.29			1.26			(2.10	)
Total income (loss) from investment operations		0.14			0.27			0.32			1.26			(2.11	)
Less distributions to shareholders:
From net investment income		(0.03	)		(0.03	)		(0.03	)		(0.00	)††		-
Net asset value, end of year	$	7.38		$	7.27		$	7.03		$	6.74		$	5.48
Total Return(a)		1.98	%		3.86	%		4.78	%		23.02	%		(27.80	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	20,182		$	21,242		$	22,894		$	21,460		$	16,568
Ratio of expenses to average daily net assets:
Before expense waiver		1.15	%		1.05	%		1.00	%		1.28	%		1.08	%
After expense waiver		0.91	% #		0.91	% #		0.89	% (b)#		0.86	% (b)#		0.89	% (b)#
Net investment income (loss) to average daily net assets		0.56	%		0.40	%		0.47	%		0.02	%		(0.10	)%
Portfolio turnover rate		104	%		85	%		184	%		271	%		219	%

*** Per share amount calculated on the average shares method.

† Net investment income (loss) is less than $0.01 per share.

†† Distributions from net investment income are less than $0.01 per share.

††† Effective January 1, 2005, rebated brokerage commissions are included with realized gain or loss on investment transactions. Prior to January 1, 2005, these amounts were presented as a reduction of expenses. Prior year amounts have not been restated to reflect this change due to immateriality. (See Note 3).

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

(b) The Fund has entered into an agreement with certain brokers to rebate a portion of brokerage commissions. The related commissions are used to reduce operating expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML OTC 100 Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Year ended 12/31/06			Year ended 12/31/05			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	4.18		$	4.13		$	3.76		$	2.53		$	4.06
Income (loss) from investment operations:
Net investment income (loss)		0.01	***		0.00	***†		0.02			(0.01	)		(0.02	)
Net realized and unrealized gain (loss) on investments		0.27			0.05			0.37			1.24			(1.51	)
Total income (loss) from investment operations		0.28			0.05			0.39			1.23			(1.53	)
Less distributions to shareholders:
From net investment income		(0.00	)†		(0.00	)†		(0.02	)		-			-
Net asset value, end of year	$	4.46		$	4.18		$	4.13		$	3.76		$	2.53
Total Return(a)		6.75	%		1.26	%		10.48	%		48.62	%		(37.68	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	8,474		$	9,496		$	12,223		$	12,274		$	4,096
Ratio of expenses to average daily net assets:
Before expense waiver		1.08	%		0.86	%		0.77	%		1.22	%		1.08	%
After expense waiver		0.56	% #		0.56	% #		0.56	% #		0.56	% #		0.56	% #
Net investment income (loss) to average daily net assets		0.13	%		0.03	%		0.63	%		(0.31	)%		(0.45	)%
Portfolio turnover rate		9	%		23	%		35	%		48	%		64	%

*** Per share amount calculated on the average shares method.

† Net investment income (loss) and distributions from net investment income (loss) are less than $0.01 per share.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML Small Cap Growth Equity Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Year ended 12/31/06			Year ended 12/31/05†			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	14.73		$	13.21		$	11.66		$	7.85		$	10.60
Income (loss) from investment operations:
Net investment income (loss)		(0.06	)***		(0.05	)		(0.07	)		(0.07	)		(0.09	)
Net realized and unrealized gain (loss) on investments		1.40			1.57			1.62			3.88			(2.66	)
Total income (loss) from investment operations		1.34			1.52			1.55			3.81			(2.75	)
Net asset value, end of year	$	16.07		$	14.73		$	13.21		$	11.66		$	7.85
Total Return(a)		9.10	%		11.58	%		13.29	%		48.54	%		(25.94	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	169,941		$	105,008		$	62,009		$	47,687		$	26,784
Ratio of expenses to average daily net assets:
Before expense waiver		1.18	%		1.22	%		1.21	%		1.25	%		1.24	%
After expense waiver		N/A			1.18	% #		1.14	% (b)#		1.16	% (b)#		1.16	% (b)#
Net investment income (loss) to average daily net assets		(0.41	)%		(0.48	)%		(0.63	)%		(0.79	)%		(0.84	)%
Portfolio turnover rate		79	%		61	%		62	%		59	%		53	%

*** Per share amount calculated on the average shares method.

† Effective January 1, 2005, rebated brokerage commissions are included with realized gain or loss on investment transactions. Prior to January 1, 2005, these amounts were presented as a reduction of expenses. Prior year amounts have not been restated to reflect this change due to immateriality. (See Note 3).

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

(b) The Fund has entered into an agreement with certain brokers to rebate a portion of brokerage commissions. The rebated commissions are used to reduce operating expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

MML Emerging Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Year ended 12/31/06			Year ended 12/31/05			Year ended 12/31/04			Year ended 12/31/03			Year ended 12/31/02
Net asset value, beginning of year	$	5.97		$	5.92		$	5.16		$	3.54		$	6.15
Income (loss) from investment operations:
Net investment income (loss)		(0.05	)***		(0.05	)		(0.05	)		(0.04	)		(0.05	)***
Net realized and unrealized gain (loss) on investments		0.37			0.10			0.81			1.66			(2.56	)
Total income (loss) from investment operations		0.32			0.05			0.76			1.62			(2.61	)
Net asset value, end of year	$	6.29		$	5.97		$	5.92		$	5.16		$	3.54
Total Return(a)		5.36	%		0.84	%		14.73	%		45.76	%		(42.44	)%
Ratios / Supplemental Data:
Net assets, end of year (000's)	$	14,703		$	13,807		$	14,136		$	10,064		$	4,333
Ratio of expenses to average daily net assets:
Before expense waiver		1.55	%		1.51	%		1.62	%		2.28	%		1.76	%
After expense waiver		1.16	% #		1.16	% #		1.16	% #		1.16	% #		1.16	% #
Net investment income (loss) to average daily net assets		(0.83	)%		(0.91	)%		(0.97	)%		(1.09	)%		(1.09	)%
Portfolio turnover rate		291	%		127	%		184	%		195	%		190	%

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

The accompanying notes are an integral part of the financial statements.

Notes to Financial Statements

1. The Fund
MML Series Investment Fund ("MML Trust") is registered under the Investment Company Act of 1940, as amended (the "1940 Act"), as a no-load, open-end, management investment company. MML Trust is organized under the laws of the Commonwealth of Massachusetts as a Massachusetts business trust pursuant to an Agreement and Declaration of Trust dated May 14, 1993, as amended. The following are six series of MML Trust (each individually referred to as a "Fund" or collectively as the "Funds"): MML Large Cap Value Fund ("Large Cap Value Fund"), MML Equity Index Fund ("Equity Index Fund"), MML Growth Equity Fund ("Growth Equity Fund"), MML OTC 100 Fund ("OTC 100 Fund"), MML Small Cap Growth Equity Fund ("Small Cap Growth Equity Fund") and MML Emerging Growth Fund ("Emerging Growth Fund").

MML Trust was established by Massachusetts Mutual Life Insurance Company ("MassMutual") for the purpose of providing vehicles for the investment of assets of various separate investment accounts established by MassMutual and by life insurance companies which are subsidiaries of MassMutual. Shares of MML Trust are not offered to the general public.

The Equity Index Fund offers three classes of shares: Class I, Class II and Class III. Each share class invests in the same portfolio of assets. The principal difference among the classes is the level of service and administration fees borne by the classes. Because each class will have different fees and expenses, performance and share prices among the classes will vary. The classes of shares are offered to different types of investors, as outlined in the Fund's Prospectus.

2. Significant Accounting Policies
The following is a summary of significant accounting policies followed consistently by each Fund in the preparation of the financial statements in conformity with accounting principles generally accepted in the United States of America ("generally accepted accounting principles"). The preparation of the financial statements in accordance with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts and disclosures in the financial statements. Actual results could differ from those estimates.

Investment Valuation
Equity securities are valued on the basis of valuations furnished by a pricing service, authorized by the Board of Trustees ("Trustees"), which provides the last reported sale price for securities listed on a national securities exchange or the official closing price on the NASDAQ National Market System, or in the case of over-the-counter securities not so listed, the last reported bid price. Debt securities (other than short-term obligations with a remaining maturity of sixty days or less) are valued on the basis of valuations furnished by a pricing service, authorized by the Trustees, which determines valuations taking into account appropriate factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, m aturity, type of issue, trading characteristics and other market data. Short-term securities with a remaining maturity of sixty days or less are valued at either amortized cost or at original cost plus accrued interest, whichever approximates current market value. All other securities and other assets, including futures, options, swaps and debt securities for which the prices supplied by a pricing agent are deemed by the Trustees not to be representative of market values, including restricted securities and securities for which no market quotation is available, are valued at fair value in accordance with procedures approved by and determined in good faith by the Trustees, although the actual calculation may be done by others. Securities are typically valued on the basis of valuations furnished by a primary pricing service or, if no such valuation is available, from a secondary pricing service. However, valuation methods approved by the Trustees which are intended to reflect fair value may be used when pricin g service information is not readily available or when a security's value is believed to have been materially affected by a significant event, such as a natural disaster, an economic event like a bankruptcy filing, or a substantial fluctuation in domestic or foreign markets, that has occurred after the close of the exchange or market on which the security is principally traded (for example, a foreign exchange or market). In such a case, a Fund's value for a security is likely to be different from the last quoted market price or pricing service information. Due to the subjective and variable nature of fair value pricing, it is possible that the value determined for a particular asset may be materially different from the value realized upon such asset's sale.

Notes to Financial Statements (Continued)

Portfolio securities traded on more than one national securities exchange are valued at the last price on the business day as of which such value is being determined at the close of the exchange representing the principal market for such securities. All assets and liabilities expressed in foreign currencies are converted into U.S. dollars at the mean between the buying and selling rates of such currencies against U.S. dollars last quoted by any major bank. If such quotations are not available, the rate of exchange is determined in accordance with policies established by the Trustees.

Securities Lending Each Fund may lend its securities to qualified brokers; however, securities lending cannot exceed 33% of the total assets of the Funds taken at current value. The loans are collateralized at all times with cash or securities with a market value at least equal to 100% of the market value of the securities on loan. The market value of the loaned securities is determined at the close of business of the Fund and any additional collateral is delivered to the Fund the next business day. As with other extensions of credit, the Funds may bear the risk of delay in recovery or even loss of rights in the collateral should the borrower of the securities fail financially. The Funds receive compensation for lending their securities. At December 31, 2006, the Funds loaned securities having the following market values, collateralized by cash, which w as invested in short-term instruments in the following amounts:

	Securitites on Loan		Collateral
Large Cap Value Fund	$	15,991,356	$	16,462,414
Equity Index Fund		16,587,040		17,179,208
Growth Equity Fund		1,430,424		1,472,669
Small Cap Growth Equity Fund		46,616,475		48,630,426

For each Fund the amount of securities on loan indicated in the table above may not correspond with the securities on loan identified on the Portfolio of Investments because securities with pending sales are in process of recall from the brokers. At December 31, 2006, the Small Cap Growth Equity Fund had securities on loan with pending sales with a market value of $67,217.

MML Trust receives, as fees, a share of the income earned on investment of the cash collateral received for the loan of securities. For the year ended December 31, 2006, MML Trust earned securities lending agent fees as follows:

	Securities Lending Gross Income		Securities Lending Fees and Expenses		Securities Lending Net Income
Large Cap Value Fund	$	611,894	$	600,044	$	11,850
Equity Index Fund		1,207,290		1,182,602		24,688
Growth Equity Fund		95,688		94,131		1,557
Small Cap Growth Equity Fund		1,614,601		1,523,503		91,098

Repurchase Agreements
Each Fund may enter into repurchase agreements with certain banks and broker/dealers whereby a Fund acquires a security for cash and obtains a simultaneous commitment from the seller to repurchase the security at an agreed upon price and date. The Funds, through their custodian, take possession of the securities collateralizing the repurchase agreement. The collateral is marked to market daily to ensure that the market value of the underlying assets remains sufficient to protect the Funds in the event of default by the seller. Collateral for certain tri-party repurchase agreements is held at the counterparty's custodian in a segregated account for the benefit of the Funds and the counterparty. In connection with transactions in repurchase agreements , if the seller defaults and the value of the collateral declines or if the seller enters insolvency proceedings, realization of collateral by the Funds may be delayed or limited.

Notes to Financial Statements (Continued)

Accounting for Investments
Investment transactions are accounted for on the trade date. Realized gains and losses on sales of investments and unrealized appreciation and depreciation of investments are computed on the specific identification cost method. Interest income, adjusted for amortization of discounts and premiums on debt securities, is earned from the settlement date and is recorded on the accrual basis. Dividend income is recorded on the ex-dividend date.

Federal Income Tax It is each Fund's intent to continue to comply with the provisions of subchapter M of the Internal Revenue Code of 1986, as amended (the "Code"), applicable to a regulated investment company. Under such provisions, the Funds will not be subject to federal income taxes on their ordinary income and net realized capital gains to the extent they are distributed or deemed to have been distributed to their shareholders. Therefore, no Federal income tax provision is required. Withholding taxes on foreign interest, dividends and capital gains have been provided for in accordance with the applicable country's tax rules and rates.

Dividends and Distributions to Shareholders
Dividends from net investment income and distributions of any net realized capital gains of each Fund are declared and paid annually and at other times as may be required to satisfy tax or regulatory requirements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. These differences are primarily due to investments in passive foreign investment companies and the deferral of wash sale losses. As a result, net investment income and net realized gain on investment transactions for a reporting period may differ significantly from distributions during such per iod.

Accordingly, the Funds may periodically make reclassifications among certain of their capital accounts without impacting the net asset value of the Funds.

During the year ended December 31, 2006, the following amounts were reclassified due to differences between book and tax accounting.

	Paid-in Capital			Accumulated Net Realized Gain (Loss) on Investments			Undistributed Net Investment Income
Large Cap Value Fund	$	(37,069	)	$	73,806		$	(36,737	)
Equity Index Fund		(94,455	)		211,684			(117,229	)
Growth Equity Fund		-			15,103			(15,103	)
OTC 100 Fund		-			8,563			(8,563	)
Small Cap Growth Equity Fund		(530,476	)		(1,237	)		531,713
Emerging Growth Fund		(124,184	)		4,710			119,474

Foreign Currency Translation The books and records of the Funds are maintained in U.S. dollars. The market values of foreign currencies, foreign securities and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars at the mean of the buying and selling rates of such currencies against the U.S. dollar at the end of each business day. Purchases and sales of foreign securities and income and expense items are translated at the rates of exchange prevailing on the respective dates of such transactions. The Funds do not isolate that portion of the results of operations arising from changes in the exchange rates from that portion arising from changes in the market prices of securities. Net realized foreign currency gains and losses resulting from changes in exchange rates include foreign currency gains and losses betwe en trade date and settlement date on investment securities transactions, foreign currency transactions and the difference between the amounts of dividends recorded on the books of the Funds and the amount actually received.

Notes to Financial Statements (Continued)

Forward Foreign Currency
Contracts
Each Fund may enter into forward foreign currency contracts in order to hedge the effect of currency movements of foreign denominated securities or obligations. A forward foreign currency contract is an agreement between two parties to buy and sell a currency at a set price on a future date. The market value of a forward foreign currency contract fluctuates with changes in foreign currency exchange and interest rates. Forward foreign currency contracts are marked to market daily and the change in their value is recorded by the Funds as an unrealized gain or loss. When a forward foreign currency contract is extinguished, through delivery or offset by entering into another forward foreign currency contract, the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value of the contract at the time it was extinguished or offset.

Forward foreign currency contracts involve a risk of loss from the potential inability of counterparties to meet the terms of their contracts and from unanticipated movements in foreign currency values and interest rates.

The notional or contractual amounts of these instruments represent the investments the Funds have in particular classes of financial instruments and do not necessarily represent the amounts potentially subject to risk. The measurement of the risk associated with these instruments is meaningful only when all related and offsetting transactions are considered.

At December 31, 2006, the Funds had no open forward foreign currency contracts.

Delayed Delivery
Transactions,
When Issued
Securities, and
Forward
Commitments Each Fund may purchase or sell securities on a "when issued" or delayed delivery or on a forward commitment basis. The Funds use forward commitments to manage interest rate exposure or as a temporary substitute for purchasing or selling particular debt securities. Payment and delivery may take place after the customary settlement period for that security. The price of the u nderlying securities and the date when the securities will be delivered and paid for are fixed at the time the transaction is negotiated. These securities are valued on the basis of valuations furnished by a pricing service, authorized by the Trustees, which determines valuations taking into account appropriate factors such as institutional-size trading in similar groups of securities, yield, quality, coupon rate, maturity, type of issue, trading characteristics and other market data. Securities for which no market quotation is available, are valued at fair value in accordance with procedures approved by and determined in good faith by the Trustees, although the actual calculation may be done by others. The Funds record on a daily basis the unrealized appreciation (depreciation) based upon changes in the value of these securities. When a forward commitment contract is closed, the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the v alue of the contract at the time it was closed. Losses may arise due to changes in the value of the underlying securities or if the counterparty does not perform under the contract, or if the issuer does not issue the securities due to political, economic, or other factors. Funds monitor exposure to ensure counterparties are creditworthy and concentration of exposure is minimized

At December 31, 2006, the Funds had no open obligations under these forward commitments.

Financial Futures Contracts The Funds may purchase or sell financial futures contracts and options on such futures contracts for the purpose of hedging the market risk on existing securities or as a substitute for the purchase of securities. Futures contracts are contracts for delayed delivery of securities at a specific future date and at a specific price or yield. Upon entering into a contract, the Funds deposit and maintain as collateral such initial margin as required by the exchange on which the transaction is effected. Pursuant to the contract, the Fund agrees to receive from or pay to the broker an amount of cash equal to the daily fluctuation in value of the contract. Such receipts or payments are known as variation margin and are recorded by the Funds as unrealized gains or losses. When the contract is closed, each Fund records a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value at the time it was closed. Futures contracts are valued at the settlement price established each day by the board of trade or exchange on which they are traded.

Notes to Financial Statements (Continued)

A summary of open futures contracts for the Equity Index Fund and the OTC 100 Fund at December 31, 2006 is as follows:

Number of
Contracts

Type

Expiration Date

Notional
Contract
Value

Net Unrealized
Appreciation
(Depreciation)

Equity Index Fund

BUYS
132

S&P 500 E-mini

03/16/07

9,427,440

17,326

OTC 100 Fund

BUYS
6

Nasdaq 100 E-mini

03/16/07

213,000

(6,262

)

Allocation of Operating Activity In maintaining the records for the Equity Index Fund, the income and expense accounts are allocated to each class of shares. Investment income, unrealized and realized gains or losses are prorated among the classes of shares based on the relative net assets of each. Expenses are allocated to each class of shares depending on the nature of the expenditures. Administration fees, which are directly attributable to a class of shares, are charged to that class' operations. Expenses of the Fund not directly attributable to the operations of any class of shares are prorated among the classes to which the expense relates based on the relative net assets of each.

Foreign Securities The Funds may also invest in foreign securities, subject to certain percentage restrictions. Investing in securities of foreign companies and foreign governments involves special risks and considerations not typically associated with investing in securities issued by U.S. companies and the U.S. Government. These risks include revaluation of currencies and future adverse political and economic developments. Moreover, securities of many foreign companies and foreign governments and their markets may be less liquid and their prices more volatile than those of securities of comparable U.S. companies and the U.S. Government.

3. Management Fees and Other Transactions

Investment Management Fees
Under agreements between MML Trust and MassMutual on behalf of each Fund, MassMutual is responsible for providing investment management services for each Fund. In return for this service, MassMutual receives advisory fees quarterly based on the following annual rates.

For the Large Cap Value Fund, MassMutual receives a fee from the Fund at an annual rate of 0.80% on the first $100,000,000, 0.75% on the next $400,000,000 and 0.70% on assets over $500,000,000, of the average daily net asset value of the Fund.

For the Equity Index Fund, MassMutual receives a fee from the Fund at an annual rate of 0.10% of the average daily net asset value of the Fund.

For the Growth Equity Fund, MassMutual receives a fee from the Fund at an annual rate of 0.80% on the first $300,000,000, 0.77% on the next $300,000,000, 0.75% on the next $300,000,0000, 0.72% on the next $600,000,000 and 0.65% on assets over $1,500,000,000, of the average daily net asset value of the Fund.

For the OTC 100 Fund, MassMutual receives a fee from the Fund at an annual rate of 0.45% on the first $200,000,000, 0.44% on the next $200,000,000 and 0.42% on assets over $400,000,000, of the average daily net asset value of the Fund.

Notes to Financial Statements (Continued)

For the Small Cap Growth Equity Fund, MassMutual receives a fee from the Fund at the annual rate of 1.075% on the first $200,000,000, 1.05% on the next $200,000,000, 1.025% on the next $600,000,000 and 1.00% on assets over $1,000,000,000, of the average daily net asset value of the Fund.

For the Emerging Growth Fund, MassMutual receives a fee from the Fund at the annual rate of 1.05% on the first $200,000,000, 1.00% on the next $200,000,000 and 0.95% on assets over $400,000,000, of the average daily net asset value of the Fund.

MassMutual has entered into investment sub-advisory agreements with the following unaffiliated investment sub-advisers: Davis Selected Advisers, L.P. for the Large Cap Value Fund, Northern Trust Investments, N.A. for the Equity Index Fund and the OTC 100 Fund, Grantham, Mayo, Van Otterloo & Co. LLC for the Growth Equity Fund, Delaware Management Company ("DMC") for a portion of the Emerging Growth Fund, Insight Capital Research & Management, Inc. ("Insight Capital") for a portion of the Emerging Growth Fund, Waddell & Reed Investment Management Company for a portion of the Small Cap Growth Equity Fund, and Wellington Management Company, LLP for a portion of the Small Cap Growth Equity Fund. DMC and Insight Capital replaced RS Investment Management, L.P. as the Emerging Growth Fund's sub-adviser in July, 2006. MassMutual pays a sub-advisory fee to each of these sub-advisers based upon the aggregate net assets under management whic h include (1) the average daily net assets of the specified Fund which it manages, and (2) the average daily net assets of all other funds or accounts of MassMutual or its affiliates for which the sub-adviser provides sub-advisory services and which have substantially the same investment objectives, policies and investment strategies.

The Fund sub-adviser fees are paid out of the management fees previously disclosed above.

Administration & Shareholder Service Fees For the Equity Index Fund, under a separate administrative and shareholder services agreement between the Fund and MassMutual, MassMutual provides certain administrative and shareholder services and bears some class specific administrative expenses. In return for these services, MassMutual receives an administrative services fee monthly based upon the average daily net assets of the applicable class of shares of the Fund at the following annual rates: 0.30% on the first $100,000,000, 0.28% on the next $150,000,000 and 0.26% on assets in excess of $250,000,000 of Class I shares of the Fund, 0.19% of the average daily net assets of Class II shares of the Fund, and for Class III shares, an amount not to exceed 0.05% of the average daily net assets of Class III shares.

Expense Waivers For all Funds, except the Equity Index Fund, MassMutual has agreed, at least through April 30, 2007, to bear the expenses of the Fund to the extent that the aggregate expenses (excluding the Fund's management fee, interest, taxes, brokerage commissions and extraordinary expenses) incurred during the Fund's fiscal year exceed 0.11% of the average daily net assets of the Fund for such year.

For each class of the Equity Index Fund, MassMutual has agreed, at least through April 30, 2007, to bear the expenses of the Fund, to the extent that the aggregate expenses (excluding the Fund's management and administrative fees, interest, taxes, brokerage commissions and extraordinary expenses) incurred during the Fund's fiscal year exceed 0.05% of the average daily net assets of the Fund for such year. MassMutual has also agreed to waive certain administrative and shareholder service fees payable by the Fund on account of Class II or Class III shares.

Rebated Brokerage Commissions The Large Cap Value Fund and the Small Cap Growth Equity Fund have entered into agreements with certain brokers whereby the brokers will rebate, in cash, a portion of brokerage commissions. Effective January 1, 2005, amounts earned by the Funds under such agreements are included with realized gain or loss on investment transactions presented in the statement of operations. Prior to January 1, 2005, amounts earned by the Funds under such agreements were presented as a reduction of expenses. Prior year amounts have not been restated to reflect this change due to immateriality. For the year ended December 31, 2006, brokerage commissions under these agreements are as follows:

	Commissions
Large Cap Value Fund	$	6,395
Small Cap Growth Equity Fund		37,950

Notes to Financial Statements (Continued)

Other Certain officers and trustees of the Funds are also officers of MassMutual. The compensation of each trustee who is not an officer of MassMutual is borne by the Funds.

Deferred Compensation Trustees of the Funds that are not employees of MassMutual or its subsidiaries may elect to defer receipt of their annual fees in accordance with terms of the Non-Qualified Deferred Compensation Plan. Any amounts deferred shall accrue interest at a rate equal to eight percent (8%) per annum.

For the year ended December 31, 2006, no significant amounts have been deferred.

4. Purchases and Sales of Investments
Cost of purchases and proceeds from sales of investment securities (excluding short-term investments) for the year ended December 31, 2006, were as follows:

		Long-Term U.S. Government Securities		Other Long-Term Securities
Purchases	Large Cap Value Fund	$	-	$	73,449,535
	Equity Index Fund		-		15,069,484
	Growth Equity Fund		-		20,319,100
	OTC 100 Fund		-		804,098
	Small Cap Growth Equity Fund		-		146,937,572
	Emerging Growth Fund		-		39,436,134
Sales	Large Cap Value Fund	$	-	$	16,269,007
	Equity Index Fund		-		65,943,902
	Growth Equity Fund		-		21,651,280
	OTC 100 Fund		-		2,498,479
	Small Cap Growth Equity Fund		-		95,607,383
	Emerging Growth Fund		-		39,329,899

5. Capital Share Transactions The Funds are authorized to issue an unlimited number of shares, with no par value in each class of shares. Changes in shares outstanding for each Fund are as follows:

	Year ended December 31, 2006						Year ended December 31, 2005
	Shares			Amount			Shares			Amount
Large Cap Value Fund
Sold		6,102,448		$	72,121,423			4,797,526		$	51,433,898
Issued as reinvestment of dividends		104,527			1,346,138			75,819			859,292
Redeemed		(1,134,554	)		(13,328,874	)		(993,590	)		(10,513,332	)
Net increase (decrease)		5,072,421		$	60,138,687			3,879,755		$	41,779,858
Equity Index Fund Class I
Sold		1,002,187		$	16,572,222			268,067		$	4,013,494
Issued as reinvestment of dividends		71,686			1,256,660			68,899			1,066,558
Redeemed		(1,136,209	)		(18,405,089	)		(1,099,955	)		(16,412,073	)
Net increase (decrease)		(62,336	)	$	(576,207	)		(762,989	)	$	(11,332,021	)
Equity Index Fund Class II
Sold		960,638		$	15,654,453			1,309,259		$	19,563,975
Issued as reinvestment of dividends		174,094			3,050,128			184,796			2,856,941
Redeemed		(2,145,184	)		(34,458,419	)		(1,980,256	)		(29,270,326	)
Net increase (decrease)		(1,010,452	)	$	(15,753,838	)		(486,201	)	$	(6,849,410	)
Equity Index Fund Class III
Sold		88,827		$	1,391,710			37,261		$	572,832
Issued as reinvestment of dividends		126,881			2,219,155			151,784			2,342,021
Redeemed		(1,855,114	)		(30,002,442	)		(435,899	)		(6,526,737	)
Net increase (decrease)		(1,639,406	)	$	(26,391,577	)		(246,854	)	$	(3,611,884	)

Notes to Financial Statements (Continued)

	Year ended December 31, 2006						Year ended December 31, 2005
	Shares			Amount			Shares			Amount
Growth Equity Fund
Sold		335,557		$	2,404,090			436,645		$	3,014,287
Issued as reinvestment of dividends		12,543			92,922			12,569			92,443
Redeemed		(533,380	)		(3,827,505	)		(784,162	)		(5,509,776	)
Net increase (decrease)		(185,280	)	$	(1,330,493	)		(334,948	)	$	(2,403,046	)
OTC 100 Fund
Sold		349,978		$	1,463,976			441,743		$	1,731,964
Issued as reinvestment of dividends		947			4,218			1,039			4,405
Redeemed		(723,203	)		(3,063,183	)		(1,131,374	)		(4,506,273	)
Net increase (decrease)		(372,278	)	$	(1,594,989	)		(688,592	)	$	(2,769,904	)
Small Cap Growth Equity Fund
Sold		4,423,014		$	68,184,247			3,182,280		$	43,230,890
Issued as reinvestment of dividends		-			-			-			-
Redeemed		(977,001	)		(15,155,354	)		(750,195	)		(10,069,083	)
Net increase (decrease)		3,446,013		$	53,028,893			2,432,085		$	33,161,807
Emerging Growth Fund
Sold		570,498		$	3,497,313			387,186		$	2,159,099
Issued as reinvestment of dividends		-			-			-			-
Redeemed		(544,853	)		(3,333,314	)		(464,574	)		(2,608,565	)
Net increase (decrease)		25,645		$	163,999			(77,388	)	$	(449,466	)

6. Federal Income Tax Information At December 31, 2006, the cost of securities and the unrealized appreciation (depreciation) in the value of investments owned by the Funds, as computed on a Federal income tax basis, were as follows:

	Federal Income Tax Cost		Tax Basis Unrealized Appreciation		Tax Basis Unrealized Depreciation			Net Unrealized Appreciation (Depreciation)
Large Cap Value Fund	$	189,087,282	$	161,625,131	$	(115,833,157	)	$	45,791,974
Equity Index Fund		333,727,116		105,327,990		(19,757,937	)		85,570,053
Growth Equity Fund		20,746,712		1,381,046		(458,104	)		922,942
OTC 100 Fund		7,127,008		1,751,629		(438,283	)		1,313,346
Small Cap Growth Equity Fund		197,409,504		25,736,665		(3,820,009	)		21,916,656
Emerging Growth Fund		13,526,364		1,750,643		(353,201	)		1,397,442

At December 31, 2006, the following Funds had available, for Federal income tax purposes, unused capital losses:

	Expiring 2009		Expiring 2010		Expiring 2011		Expiring 2012		Expiring 2013
Large Cap Value Fund	$	-	$	2,188,627	$	1,015,022	$	578,706	$	465,641
Equity Index Fund		-		4,132,937		110,945		2,351,065		3,217,414
Growth Equity Fund		15,387,760		7,953,799		-		-		-
OTC 100 Fund		195,238		4,762,508		2,362,711		1,300,985		-
Small Cap Growth Equity Fund		-		757,620		930,646		-		-
Emerging Growth Fund		3,343,021		3,402,428		-		-		-

Net capital loss carryforwards may be applied against any net realized taxable gains in each succeeding year, or until their respective expiration dates, whichever occurs first.

Notes to Financial Statements (Continued)

Certain differences exist from the amounts reflected in the Statement of Changes in Net Assets primarily due to the character of short-term capital gains treated as ordinary income for tax purposes.

The Fund distinguishes between distributions on a tax basis and a financial reporting basis. Accounting principles generally accepted in the United States of America require that only distributions in excess of tax basis earnings and profits be reported in the financial statements as a return of capital.

The tax character of distributions paid during the year ended December 31, 2006 was as follows:

	Ordinary Income		Long Term Capital Gain		Short Term Capital Gain		Return of Capital
Large Cap Value Fund	$	1,346,138	$	-	$	-	$	-
Equity Index Fund		6,525,943		-		-		-
Growth Equity Fund		92,922		-		-		-
OTC 100 Fund		4,218		-		-		-

The tax character of distributions paid during the year ended December 31, 2005 was as follows:

	Ordinary Income		Long Term Capital Gain		Short Term Capital Gain		Return of Capital
Large Cap Value Fund	$	827,092	$	-	$	-	$	32,205
Equity Index Fund		6,236,349		-		-		29,171
Growth Equity Fund		92,443		-		-		-
OTC 100 Fund		4,405		-		-		-

At December 31, 2006, the components of distributable earnings on a tax basis were as follows:

	Undistributed Ordinary Income		Long Term Capital Gain (Capital Loss Carryover)			Other Temporary Differences			Unrealized Appreciation (Depreciation)*
Large Cap Value Fund	$	-	$	(4,247,996	)	$	(36,533	)	$	45,791,925
Equity Index Fund		-		(9,812,361	)		(132,105	)		85,587,379
Growth Equity Fund		4,640		(23,341,559	)		(9,113	)		922,942
OTC 100 Fund		164		(8,621,442	)		1,729			1,307,084
Small Cap Growth Equity Fund		-		(1,688,266	)		(28,288	)		21,916,713
Emerging Growth Fund		-		(6,745,449	)		(3,234	)		1,397,442

* Includes unrealized appreciation (depreciation) on investments, derivatives and foreign currency denominated assets and liabilities if any.

The following Funds elected to defer to January 1, 2007 post-October currency losses:

				Amount
Large Cap Value Fund				$	1,175

7. New Accounting Pronouncements On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the fund's tax returns to determine whether the tax positions are "more-likely-than not" of being sustained by the applicable tax authority. Adoption of FIN 48 is required during the first financial

Notes to Financial Statements (Continued)

reporting period for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective date. At this time, management is evaluating the implications of FIN 48 and its impact on the financial statements has not yet been determined.

In addition, in September 2006, Statement of Financial Accounting Standards No. 157, Fair Value Measurements (SFAS 157), was issued and is effective for fiscal years beginning after November 15, 2007. SFAS 157 determines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Management is currently evaluating the impact the adoption of SFAS 157 will have on the Funds' financial statement disclosures.

8. Proxy Voting (Unaudited) A description of the policies and procedures that each Fund's investment adviser and sub-advisers use to vote proxies relating to the Fund's portfolio securities is available, without charge, upon request, by calling 1-888-309-3539, and on the Securities and Exchange Commission's website at http://www.sec.gov.

Information regarding how the Funds voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is available, without charge, upon request, on the MassMutual website at http://www.massmutual.com and on the Securities and Exchange Commission's website at http://www.sec.gov.

9. Quarterly Reporting (Unaudited) The Funds file their complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. The Funds' Forms N-Q are available on the SEC website at http://www.sec.gov. The Funds' Forms N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington D.C. Information on the operation of the SEC's Public Reference Room may be obtained by calling 1-800-SEC-0330.

10. Special Meeting of Shareholders (Unaudited) A Special Meeting of Shareholders of MML Large Cap Value Fund, MML Equity Index Fund, MML Growth Equity Fund, MML OTC 100 Fund, MML Small Cap Growth Equity Fund and MML Emerging Growth Fund, each a series of MML Series Investment Fund, was held on April 13, 2006. Notice of the meeting, and a Proxy Statement, were distributed on or about March 17, 2006 to shareholders of record as of February 21, 2006. The results of the vote on the matter submitted to shareholders at the Special Meeting are as follows:

Proposal 1: To elect Richard H. Ayers, Allan W. Blair, Mary E. Boland, Frederick C. Castellani, Richard W. Greene, R. Alan Hunter, Jr., Robert E. Joyal and F. William Marshall, Jr. as Trustees for an indefinite term of office.^A

Proposal 1:	Shares		Shares For		% of shares voted		Withhold		% of shares voted
Richard H. Ayers		35,944,152.85		34,597,453.47		96.253		1,346,699.38		3.747

Allan W. Blair		35,944,152.85		34,587,480.50		96.226		1,356,672.35		3.774

Mary E. Boland		35,944,152.85		34,626,191.51		96.333		1,317,961.35		3.667

Frederick C. Castellani		35,944,152.85		34,613,099.23		96.297		1,331,053.63		3.703

Richard W. Greene		35,944,152.85		34,605,559.31		96.276		1,338,593.54		3.724

R. Alan Hunter, Jr.		35,944,152.85		34,597,056.60		96.252		1,347,096.26		3.748

Robert E. Joyal		35,944,152.85		34,564,253.12		96.161		1,379,899.73		3.839

F. William Marshall, Jr.		35,944,152.85		34,525,175.34		96.052		1,418,977.52		3.948

^A Denotes trust-wide proposals and voting results.

Report of Independent Registered Public Accounting Firm

To the Board of Trustees and Shareholders of MML Series Investment Fund:

We have audited the accompanying statements of assets and liabilities, including the portfolios of investments, of MML Large Cap Value Fund, MML Equity Index Fund, MML Growth Equity Fund, MML OTC 100 Fund, MML Small Cap Growth Equity Fund and MML Emerging Growth Fund (collectively the "Funds"), six of the funds comprising the MML Series Investment Fund (the "MML Trust"), as of December 31, 2006, and the related statements of operations for the year then ended, the statements of changes in net assets for each of the two years in the period then ended, and the financial highlights for each of the five years in the period then ended. These financial statements and financial highlights are the responsibility of the MML Trust's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. The MML Trust is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. Our audits include consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion of the effectiveness of the MML Trust's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and sign ificant estimates made by management, as well as evaluating the overall financial statement presentation. Our procedures include confirmation of securities owned as of December 31, 2006, by correspondence with the custodian and brokers; where replies were not received from brokers, we performed other auditing procedures. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of each of the Funds constituting the MML Trust as of December 31, 2006, and the results of their operations for the year then ended, the changes in their net assets for each of the two years in the period then ended and their financial highlights for each of the five years in the period then ended, in conformity with accounting principles generally accepted in the United States of America.

Deloitte & Touche LLP
Boston, Massachusetts
February 22, 2007

Trustees and Officers (Unaudited)

The following table lists MML Trust's trustees and officers as of December 31, 2006; their address and age; their position with MML Trust; the length of time holding that position with MML Trust; their principal occupation(s) during the past five years; the number of portfolios in the fund complex they oversee; and other directorships they hold in companies subject to registration or reporting requirements of the Securities Exchange Act of 1934 (generally called "public companies") or in registered investment companies. MML Trust's Statement of Additional Information includes additional information about MML Trust's trustees and is available, without charge, upon request by calling 1-888-309-3539 or by writing MML Series Investment Fund, c/o Massachusetts Mutual Life Insurance Company, 1295 State Street, Springfield, Massachusetts 01111-0111, Attention: Retirement Services Marketing.

Disinterested
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

Richard W. Greene
Age: 71

Chairman and Trustee of MML Trust

Since
1999

Retired.

Trustee (since 1996), Advisory Board Member (1996-1999), MassMutual Select Funds (open-end investment company).

Richard H. Ayers
Age: 64

Trustee of MML Trust

Since
1999

Retired.

Director, Applera Corporation; Trustee (since 1996) MassMutual Select Funds (open-end investment company).

Allan W. Blair
Age: 58

Trustee of MML Trust

Since
2003

President and Chief Executive Officer (since 1996), Economic Development Council of Western Massachusetts; President and Chief Executive Officer (since 1984), Westover Metropolitan Development Corporation.

Director (since 2001), Future Works, Inc.; Trustee (since 2003), MassMutual Select Funds (open-end investment company).

Mary E. Boland
Age: 67

Trustee of MML Trust

Since
1973

Attorney at Law (since 2004); Attorney at Law (1965-2004), Egan, Flanagan and Cohen, P.C. (law firm), Springfield, MA.

Director (since 1999), BankNorth Massachusetts; Vice Chairman (since 1999), Massachusetts Educational Financing Authority; Trustee (since 1994), MassMutual Select Funds (open-end investment company).

Trustees and Officers (Unaudited) (Continued)

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

R. Alan Hunter, Jr.
Age: 60

Trustee of MML Trust

Since
2003

Retired.

Trustee (since 2003), MassMutual Select Funds (open-end investment company).

F. William Marshall, Jr.
Age: 64

Trustee of MML Trust

Since
1996

Consultant (since 1999).

Trustee (since 2000), Board II Oppenheimer Funds; Trustee (since 1996), MassMutual Select Funds (open-end investment company).

Interested
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

Robert E. Joyal
Age: 61

Vice Chairman and Trustee of MML Trust

Since
2003

Retired; President (2001-2003), Managing Director (2000-2001) and Executive Director (1999-2000), David L. Babson & Company Inc.

Trustee (since 2003), President (1999-2003), MassMutual Corporate Investors and MassMutual Participation Investors (closed-end investment companies); Director (since 2003), Pemco Aviation Group, Inc.; Trustee (since 2003), MassMutual Select Funds (open-end investment company); Director (since 2005), York Enhanced Strategies Fund (closed-end investment company); Director (since 2006), Jeffries Group, Inc. (investment bank).

Frederick C. Castellani
Age: 60

Trustee and Vice President of MML Trust

Since
2006

Executive Vice President (since 2001), Senior Vice President (1996-2001), MassMutual.

Trustee and President (since 2001), MassMutual Select Funds (open-end investment company); Trustee, Vice Chairman and President (since 2006), MassMutual Premier Funds (open-end investment company); Trustee, Vice Chairman and Vice President (since 2006), MML Series Investment Fund II (open-end investment company).

Trustees and Officers (Unaudited) (Continued)

Principal Officers
who are Not
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Officer

John F. Carlson
Age: 51

President of MML Trust

Since 2006

Vice President (since 2003), Second Vice President (2002-2003), MassMutual; Vice President (1997-2002), CIGNA.

Nicholas H. Palmerino
Age: 41

Chief Financial Officer and Treasurer of MML Trust

Since 2006

Assistant Vice President (since 2006), MassMutual; Vice President (2006), Consultant (2005-2006), JP Morgan Chase Worldwide Securities Services; Senior Vice President (2003-2004), CDC IXIS Asset Management Services, Inc. and CDC IXIS Asset Management Advisers, L.P.; Vice President (1996-2003), Loomis Sayles & Company, L.P.

Kristin L. Bushard
Age: 40

Vice President of MML Trust

Since 2005

Assistant Vice President (since 2005), Managing Director (2003-2005), MassMutual; Assistant Vice President (2000-2003), Allmerica Asset Management.

Michael A. Chong
Age: 49

Vice President and Chief Compliance Officer of MML Trust

Since 2004

Vice President, Compliance (since 2004), Vice President and Associate General Counsel (1999-2004), MassMutual.

John E. Deitelbaum
Age: 38

Vice President, Clerk and Chief Legal Officer of MML Trust

Since 2006

Vice President and Associate General Counsel (since 2006), Second Vice President and Associate General Counsel (2000-2006), MassMutual.

Eric H. Wietsma
Age: 40

Vice President of MML Trust

Since 2006

Vice President (since 2005), MassMutual; Vice President (1999-2005), Hartford Life Insurance Company.

Tina M. Wilson
Age: 36

Vice President of MML Trust

Since 2006

Assistant Vice President (since 2000), MassMutual.

* The address of each Trustee and Principal Officer is the same as that for MML Trust; 1295 State Street, Springfield, Massachusetts 01111.

** Each Trustee of MML Trust serves until the next meeting of shareholders called for the purpose of electing Trustees and until the election and qualification of his successor or until he dies, resigns or is removed. Notwithstanding the foregoing, unless the Trustees determine that is is desirable and in the best interest of MML Trust that an exception to the retirement policy of MML Trust be made, a Trustee shall retire and cease to serve as a Trustee as of the first board meeting following the date on which the Trustee attains the age of seventy-two years.

Federal Tax Information (Unaudited)

For corporate shareholders, a portion of the ordinary dividends paid during the Fund's year ended December 31, 2006 qualified for the dividends received deduction, as follows:

Large Cap Value Fund	99.79	%

Equity Index Fund	100.00	%

Growth Equity Fund	100.00	%

OTC 100 Fund	100.00	%

Under Section 854(b)(2) of the Code, the Funds hereby designate the following maximum amounts as qualified dividends for purposes of the maximum rate under Section 1(h)(11) of the Code for the period ended December 31, 2006:

Large Cap Value Fund	99.79	%

Equity Index Fund	98.37	%

Growth Equity Fund	100.00	%

OTC 100 Fund	100.00	%

Other Information (Unaudited)

Fund Expenses December 31, 2006

Expense Examples				The following information is in regards to expenses for the six month period ended December 31, 2006: As a shareholder of the Funds, you incur ongoing costs, including management fees and other Fund expenses. These examples are intended to help you understand your ongoing costs (in dollars) of investing in the Funds and to compare these costs with the ongoing costs of investing in other mutual funds. These examples are based on an investment of $1,000 invested for the six month period ended December 31, 2006.

Actual Expenses				The first line of each table on the following pages provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Operating Expenses Incurred" to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes				The second line of each table on the following pages provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relati ve total costs of owning different funds.

Other Information (Unaudited) (Continued)

The Funds incur ongoing operating expenses during the normal course of business, such as management fees and other expenses. The following tables, assuming a $1,000 investment in a class of shares, disclose the ending account value and operating expenses incurred for the six months ended December 31, 2006, based on, (1) the Fund's actual return and actual expenses, and (2) a hypothetical annualized 5% return and the Fund's actual expenses:

Large Cap Value Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,110.30	$	4.52
2) Hypothetical		1,000.00		1,020.92		4.33

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.85%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Equity Index Fund

Class I

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,125.10	$	2.41
2) Hypothetical		1,000.00		1,022.89		2.29

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.45%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Class II

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,126.00	$	1.55
2) Hypothetical		1,000.00		1,023.69		1.48

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.29%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Class III

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,127.00	$	0.80
2) Hypothetical		1,000.00		1,024.40		0.77

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.15%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Other Information (Unaudited) (Continued)

Growth Equity Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,076.00	$	4.76
2) Hypothetical		1,000.00		1,020.62		4.63

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.91%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

OTC 100 Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,115.60	$	2.99
2) Hypothetical		1,000.00		1,022.38		2.85

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.56%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Small Cap Growth Equity Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,047.60	$	6.09
2) Hypothetical		1,000.00		1,019.26		6.01

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 1.18%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Emerging Growth Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,017.80	$	5.90
2) Hypothetical		1,000.00		1,019.36		5.90

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 1.16%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Massachusetts Mutual Life Insurance Company and affiliates, Springfield, MA 01111-0001

www.massmutual.com

MassMutual Financial Group is a marketing designation (or fleet name) for Massachusetts Mutual Life Insurance Company (MassMutual) and its affiliates.

L4540 1206

MML Series Investment Fund

Annual Report

for the period ended

December 31,2006

	MML Asset Allocation Fund
	MML Equity Income Fund
	MML Income & Growth Fund
	MML Growth & Income Fund
	MML Blue Chip Growth Fund
	MML Large Cap Growth Fund
	MML Concentrated Growth Fund
	MML Mid Cap Value Fund
	MML Mid Cap Growth Fund
	MML Small Cap Value Fund
	MML Small Cap Index Fund
	MML Global Fund
	MML Foreign Fund

You can’t predict. You Can Prepare®.

INVEST

INSURE

RETIRE

Table of Contents

Letter to Shareholders					1

Portfolio Manager Reports					3

Portfolio of Investments

MML Asset Allocation Fund					49

MML Equity Income Fund					57

MML Income & Growth Fund					60

MML Growth & Income Fund					64

MML Blue Chip Growth Fund					68

MML Large Cap Growth Fund					71

MML Concentrated Growth Fund					74

MML Mid Cap Value Fund					76

MML Mid Cap Growth Fund					79

MML Small Cap Value Fund					84

MML Small Cap Index Fund					88

MML Global Fund					95

MML Foreign Fund					99

Statement of Assets and Liabilities					102

Statement of Operations					110

Statement of Changes in Net Assets					114

Financial Highlights					118

Notes to Financial Statements					131

Report of Independent Registered Public Accounting Firm					143

Trustees and Officers (Unaudited)					144

Federal Tax Information (Unaudited)					147

Other Information (Unaudited)					148

MML Series Investment Fund – Letter to Shareholders

To Our Shareholders

December 31, 2006

John Carlson

A Look Back at 2006: Stocks' Impressive Year

In the fixed-income market, bond prices were little changed in the fourth quarter, due in part to low default rates and generally favorable corporate earnings. Against this backdrop, the Lehman Brothers Aggregate Bond Index returned 1.24%. The yield curve remained inverted, with the yields of shorter-term securities generally staying higher than those of longer-term issues.

(Continued)

MML Series Investment Fund – Letter to Shareholders (Continued)

It was a good year . . . after all

Why did the equity markets reverse course and head higher? During the summer, data emerged that suggested a mildly slowing, but still-expanding economy (i.e., a "soft landing") – which was seen as the best-case outcome after the cycle of Fed tightening. Inflation eased a bit over the remainder of the year, and those developments made it feasible for the central bank to keep short-term interest rates unchanged in August. Stable interest rates, in turn, fueled share prices. Falling energy prices also drove stocks higher during the second half of the year and helped to improve inflation readings. After trending higher for the first six months of 2006, crude oil declined rapidly in August and September, stabilizing around the $60 per barrel level for the remainder of the year. Meanwhile, natural gas retreated by almost 50% during the year's second half.

Outlook

John Carlson
President

* Indexes are unmanaged, do not incur fees or expenses and cannot be purchased directly for investment.

MML Asset Allocation Fund – Portfolio Manager Report

What is the investment objective of the MML Asset Allocation Fund – and who is the Fund's sub-adviser?
The Fund seeks to provide high total return consistent with preservation of capital over the long term by investing its assets in both equity and fixed-income securities. The Fund's sub-adviser, Capital Guardian Trust Company (Capital Guardian) determines the asset allocation between equity and fixed-income securities. Up to 80% of the Fund's assets may be invested in equities; up to 60% in fixed income.

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 4.74%, lagging the 6.92% return of the Lipper Balanced Fund Index, an unmanaged, equally weighted index of the 30 largest mutual funds within the Lipper Balanced Category.

What was the investment backdrop during the period?
After touching a five-year high, stocks tumbled from mid-May to mid-June, resulting in negative returns for the second quarter of 2006. Investors became more cautious, unwinding riskier positions and rotating into defensive areas, such as utilities and consumer staples. Energy stocks were resilient, benefiting from firmer oil prices. The shift in market sentiment was triggered by rising core inflation figures and the Federal Reserve's ("Fed's") increasingly aggressive tone – although comments by the Fed after its June 29 rate-setting meeting were more accommod ating and suggested that a pause in the tightening cycle was possible. The Fed raised short-term interest rates twice during the quarter, bringing the federal funds rate to 5.25% on June 29.

U.S. stocks rallied to their best third quarter since 1997, sending the S&P 500^® Index up 5.2%. Solid earnings and corporate news boosted health care, telecommunication services and information technology stocks, while weakness in the commodities markets hurt materials and energy shares. The Fed left interest rates unchanged at both its rate-setting meetings, the first gap in a tightening campaign that began in 2004. Investors, who cheered the Fed's pause, also were buoyed by weaker inflation figures and increased consumer confidence later in the quarter, as energy prices tumbled. The weakening housing market, however, cast a pall over the bullish data. In the final three months of 2006, domestic stocks rose nearly 7%, helping the S&P 500 Index achieve its biggest annual gain since 2003. All 10 industry sectors advanced, with solid earnings and buyout news boosting materials, energy and consumer discretionary stocks. T he Lehman Brothers^® Aggregate Bond Index returned 1.24% during the fourth quarter. During this period, the Fed left the federal funds rate unchanged at 5.25%, but stressed the risk that inflation might remain too high.

What factors contributed to the Fund's performance?
The portfolio held an overweight position in equities during the second quarter relative to its benchmark, the Lipper Balanced Fund Index, which hindered results during the period. The primary detractor from returns was the portfolio's substantial overweight position in information technology stocks. Within the fixed-income portion of the portfolio, we maintained a slightly long duration stance, which helped relative performance. We reduced our allocation to pass-through mortgages from neutral to underweight, which helped results, as mortgages underperformed Treasuries on a duration-adjusted basis.

For the Fund's equity component, the health care sector was the best performer in the third quarter, supported by strong balance sheets, favorable court rulings and brighter outlooks. Information technology companies and telecommunication stocks benefited from strong earnings and optimistic forecasts from Cisco and AT&T. Bond yields rallied nearly 0.50% during the quarter, and bonds, as measured by the Lehman Brothers Aggregate Bond Index, returned 3.81%. The Fed's pause in monetary tightening, fewer inflation fears and prospects for slower U.S. economic activity all contributed to the bond segment's performance.

During the fourth quarter, the Fund's energy shares were helped by stabilizing prices and solid earnings. Merger and acquisition activity benefited stocks, especially in the materials and consumer discretionary areas. Pfizer weighed on the health care sector after the company halted the development of torcetrapib, an important pipeline drug. The consumer staples sector also underperformed, as retail stocks sagged on news of lackluster holiday sales, with Wal-Mart reporting its first monthly sales

MML Asset Allocation Fund – Portfolio Manager Report (Continued)

decline in 10 years. The Lehman Brothers Aggregate Bond Index returned 1.24% for the fourth quarter. Corporate bonds and mortgage-backed securities outperformed their government counterparts during this period. The high-yield and emerging markets debt asset classes did very well in the final months of 2006.

What is your outlook?
U.S. profit growth continues to surpass expectations and robust earnings have led to reasonable price-to-earnings ratios, even as shares have advanced. We believe favorable economic, geopolitical and corporate conditions will persist and that stocks should reap the rewards. However, we also believe the Fed may hold interest rates steady rather than lowering them in the coming months. Although we expect profit growth to slow somewhat in 2007, there is room for price-to-earnings ratios to expand. By historical standards, stocks still look inexpensive against the current level of bond yields. We believe the Fed is counting on slightly sub-par growth and declining energy prices to slow inflation pressures. Because inflation is above the Fe d's perceived comfort zone and yields are at the lower end of their 2006 range, our portfolios are minimally short duration. We believe that commercial mortgage- and asset-backed securities remain attractive, especially given their credit quality, structure and yield.

MML Asset Allocation Fund – Portfolio Manager Report (Continued)

*MML Asset Allocation Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Banking, Savings & Loans	10.2	%
Federal National Mortgage Association (FNMA)	7.8	%
Financial Services	7.8	%
Electrical Equipment & Electronics	6.9	%
Energy	5.9	%
Pharmaceuticals	5.1	%
Computers & Information	3.8	%
Retail	3.6	%
Insurance	3.3	%
Prepackaged Software	2.5	%
U.S. Treasury Bonds	2.2	%
Commercial Services	2.2	%
Sovereign Debt Obligations	2.2	%
Medical Supplies	2.1	%
Foods	2.0	%
Telephone Utilities	1.9	%
Broadcasting, Publishing & Printing	1.8	%
Information Retrieval Services	1.7	%
Industrial—Diversified	1.7	%
Electric Utilities	1.6	%
Chemicals	1.6	%
Manufacturing	1.4	%
Federal Home Loan Mortgage Corporation (FHLMC)	1.4	%
Beverages	1.4	%
Transportation	1.2	%
Tobacco	1.2	%
Lodging	1.1	%
Healthcare	1.1	%
Aerospace & Defense	0.8	%
Metals & Mining	0.8	%
Automotive & Parts	0.8	%
Entertainment & Leisure	0.8	%
Machinery & Components	0.6	%
Household Products	0.6	%
Federal Home Loan Bank	0.6	%
U.S. Treasury Notes	0.6	%
Computer Programming Services	0.5	%
Advertising	0.5	%
Communications	0.5	%
Data Processing & Preparation	0.5	%
Apparel, Textiles & Shoes	0.5	%
Computer Integrated Systems Design	0.5	%
Home Construction, Furnishings & Appliances	0.4	%
Forest Products & Paper	0.4	%
Cosmetics & Personal Care	0.4	%
Restaurants	0.2	%
Real Estate	0.2	%
Food Retailers	0.2	%
Government National Mortgage Association (GNMA)	0.2	%
Building Materials & Construction	0.2	%
Computers & Office Equipment	0.2	%
U.S. Government Agencies	0.1	%
Short-Term Investments and Other Assets and Liabilities	2.2	%
	100.0	%

MML Asset Allocation Fund
Largest Stock Holdings (12/31/06)

AstraZeneca PLC Sponsored ADR (United Kingdom)

Cisco Systems, Inc.

Forest Laboratories, Inc.

General Electric Co.

Google, Inc. Cl. A

Microsoft Corp.

SLM Corp.

Wachovia Corp.

FNMA, 6.000% due 03/01/2036

Indymac Index Mortgage Loan Trust, Series 2005-AR35, Class 2A1, 6.004% due 02/25/2036

MML Asset Allocation Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Asset Allocation Fund and the Lipper Balanced Fund Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Asset Allocation Fund		4.74	%
Lipper Balanced Fund Index		6.92	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the Lipper Balanced Fund Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Equity Income Fund – Portfolio Manager Report

What is the investment objective of the MML Equity Income Fund – and who is the Fund's sub-adviser?
The Fund seeks dividend income and long-term capital growth by investing in the common stocks of established companies. The Fund's sub-adviser is T. Rowe Price Associates, Inc. (T. Rowe Price).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 11.01%, outperforming the 9.64%, return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period?
U.S. stocks declined in the two-month period ended June 30, 2006, wiping out earlier gains in the year. Investor sentiment deteriorated rapidly in mid-May, amid concerns that rising inflation would force the Federal Reserve ("Fed") to raise rates more than investors had expected. Due to investor unrest, the volatility continued into June. Markets recovered some at the end of the month, however, on news that the Fed might be ready to end its current tightening cycle. Value stocks held up better than growth issues throughout the period.

Both the stock and bond markets saw good returns in the third quarter of 2006. Markets were buoyed by the Fed's decision to hold interest rates steady in both August and September, falling crude oil prices and favorable readings in some key inflation measures. Foreign stocks also fared well. Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The U.S. dollar weakened slightly during the period, supporting the returns of foreign stocks and helping the MSCI^® EAFE^® Index to rise 10.35%. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance
The portfolio posted a strong return from its inception on May 1, 2006 to December 31, 2006. During this time frame, effective stock selection and an underweight position combined to make financials the biggest contributor to relative returns. In particular, we added value in the sector with the Fund's underweight position to commercial banks. The interest rate environment and shape of the yield curve had negatively impacted bank margins, making this one of the worst-performing financial industries. (The yield curve is a measure of the disparity of yields of bonds of comparable credit quality across a range of maturities from three months to 30 years and is often used as an economic indicator.) In addition, the Fund's acquisition of Mercantile Bankshares at a steep premium aided its performance. Similarly, our positioning in thrifts and mortgages helped relative results. We held an underweight position in this poor-performing industry and had no exposure to Washington Mutual, which underperformed due to a series of recent blunders and on worries about the challenging operating environment.

Effective stock selection among health care shares was another source of strength, driven by our positioning among pharmaceutical names. We held an overweight position in Merck, which benefited from news that its cervical cancer vaccine received FDA approval. At the same time, the Fund held an underweight stake in Pfizer, which suffered after announcing it would halt development of one of its promising new drugs because of patient health risks. Finally, stock selection helped relative results in information technology, where top-10 holding Microsoft performed well in the build-up to the release of its new Vista operating system.

Hampering the Fund's performance during the eight-month period was the portfolio's positioning in energy, where stock selection in the oil, gas, and consumable fuels industry was less than favorable. In particular, we held an underweight allocation in ExxonMobil, which performed very well in the fourth quarter. However, we do have sizable positions in stocks such as ExxonMobil and Chevron,

MML Equity Income Fund – Portfolio Manager Report (Continued)

which were some of our top absolute contributors to performance for the quarter. An underperformer in the energy sector since the Fund's inception was BP, which suffered a number of setbacks, including cutting production estimates because of hurricane-related delays for its Gulf of Mexico operations. As a result, energy was the leading detractor from relative results during the eight-month period. That said, the effects of poor stock selection were mitigated somewhat by an overweight position in this strong sector.

In the consumer discretionary sector, our stock selection hampered the Fund's relative returns, though just as in energy, an overweight here helped to lessen the impact. Holdings in several industries detracted – including hotels, restaurants, household durables and diversified consumer services. One notable laggard here was H&R Block, which has been under pressure because of its exposure to sub-prime lending and an investigation into its selling practices. We've been buying this stock because we believe its price more than takes into account the risk of unfavorable outcomes.

What is your outlook?
We will continue to keep a watchful eye on the various factors that have had a strong influence over the markets for the past several years – specifically, oil prices, inflation, geopolitical unrest and Fed policy. While no one can be sure precisely how these factors will affect the equity markets in 2007, we are confident that the Fund is positioned to handle the wide array of market conditions that investors could face throughout the coming year.

MML Equity Income Fund – Portfolio Manager Report (Continued)

*MML Equity Income Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Energy	9.7	%
Banking, Savings & Loans	8.3	%
Pharmaceuticals	8.2	%
Broadcasting, Publishing & Printing	5.7	%
Insurance	5.5	%
Telephone Utilities	5.2	%
Electric Utilities	4.7	%
Electrical Equipment & Electronics	4.7	%
Financial Services	4.4	%
Industrial—Diversified	3.0	%
Retail	2.6	%
Cosmetics & Personal Care	2.6	%
Computers & Information	2.4	%
Foods	2.3	%
Beverages	2.2	%
Chemicals	2.0	%
Aerospace & Defense	2.0	%
Forest Products & Paper	1.9	%
Prepackaged Software	1.8	%
Transportation	1.7	%
Household Products	1.6	%
Communications	1.4	%
Building Materials & Construction	1.3	%
Commercial Services	1.3	%
Machinery & Components	1.1	%
Medical Supplies	1.0	%
Toys, Games	1.0	%
Entertainment & Leisure	0.9	%
Manufacturing	0.9	%
Automotive & Parts	0.8	%
Photography Equipment/ Supplies	0.7	%
Metals & Mining	0.5	%
Tobacco	0.5	%
Home Construction, Furnishings & Appliances	0.5	%
Computer Integrated Systems Design	0.3	%
Short-Term Investments and Other Assets and Liabilities	5.3	%
	100.0	%

MML Equity Income Fund
Largest Stock Holdings (12/31/06)

AT&T, Inc.

Chevron Corp.

Exxon Mobil Corp.

General Electric Co.

International Paper Co.

JP Morgan Chase & Co.

Marsh & McLennan Cos., Inc.

Merck & Co., Inc.

Microsoft Corp.

Royal Dutch Shell PLC Sponsored ADR
(United Kingdom)

MML Equity Income Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Equity Income Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Equity Income Fund		11.01	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Income & Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Income & Growth Fund – and who is the Fund's sub-adviser
The Fund seeks growth of capital by investing in common stocks of companies which the Fund's sub-adviser, American Century Investment Management, Inc. (American Century), believes offer prospects for capital growth. Income is a secondary objective.

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 11.66%, outperforming the 9.64% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period?
After posting solid gains in the first three months of 2006, the U.S. stock market reversed course in the second quarter of the year. Stocks declined as evidence of increasing inflation – in the form of higher-than-expected readings on the Consumer Price Index – led to further interest rate increases by the Federal Reserve ("Fed"). Consequently, investors grew concerned about the potential negative impact of rising interest rates on the economy and corporate profits. Most broad domestic stock indexes fell in the second quarter. In a reversal from the previous quarter, large-cap stocks held up the best, while smaller-company issues suffered the most substantial declines. Value shares outperformed growth across all market capitalizations, reflecting the risk-averse sentiment in the broader market.

Despite a slow start, the U.S. stock market enjoyed solid gains in the third quarter. Stocks plodded along during the first half of the quarter, clouded by uncertainties about inflation and economic growth, until the Fed chose to leave short-term interest rates unchanged at its August policy meeting. After 17 consecutive rate hikes over a two-year period, the Fed decided to stand pat in both August and September, amid evidence of moderating economic growth and declining commodity prices. In response, stocks staged a strong rally in the last six weeks of the quarter. In an environment of slowing economic growth, large-cap stocks significantly outperformed small- and mid-cap names, while value shares continued to outdistance growth-oriented issues across all market capitalizations.

Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The U.S. dollar weakened slightly during the period, supporting the returns of foreign stocks and helping the MSCI^® EAFE^® Index to rise 10.35%. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance?
From the Fund's inception on May 1, 2006 through December 31, 2006, the overriding factor in the Fund's performance was stock selection. In the second quarter, our investment choices in nearly every sector of the market contributed positively to the Fund's performance relative to the S&P 500 Index (the "benchmark"), led by information technology and health care – the worst-performing sectors of the market. Successful stock selection in these two sectors was largely dependent on avoiding the laggards. The consumer sectors – consumer discretionary and consumer staples – were among the only segments of the market to detract from the Fund's relative performance in the second quarter.

In the third quarter of 2006, our stock picks in nearly every sector of the market hampered the portfolio's performance versus the index. The only exceptions were the energy and health care sectors. The Fund's information technology holdings had the biggest negative impact on performance relative to the benchmark – particularly stock selection among electronic equipment makers. Our stock choices in the materials sector also weighed on relative performance, particularly among forest and paper product companies. Stock selection enhanced relative results in just two sectors of the portfolio – health care and energy.

MML Income & Growth Fund – Portfolio Manager Report (Continued)

Turning to the fourth quarter, our most effective stock picks occurred in the information technology sector. The portfolio's energy stocks, which posted one of the best absolute returns in the portfolio, also enhanced results relative to the benchmark. An emphasis on energy producers paid off, as oil and gas prices rebounded in the final three months of the year. On the downside, the Fund's industrials and utilities holdings lagged their counterparts in the S&P 500, though the underperformance was modest. In the utilities sector, the missteps were actually missed opportunities. Many of the best-performing utilities stocks in the benchmark were not represented in the portfolio, leading to the overall underperformance in that sector.

MML Income & Growth Fund – Portfolio Manager Report (Continued)

*MML Income & Growth Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Financial Services	15.2	%
Energy	14.2	%
Pharmaceuticals	9.5	%
Banking, Savings & Loans	7.2	%
Computers & Information	5.3	%
Insurance	5.2	%
Telephone Utilities	4.2	%
Automotive & Parts	2.7	%
Metals & Mining	2.6	%
Computers & Office Equipment	2.4	%
Prepackaged Software	2.2	%
Chemicals	2.2	%
Aerospace & Defense	2.1	%
Cosmetics & Personal Care	2.0	%
Transportation	2.0	%
Machinery & Components	1.8	%
Electrical Equipment & Electronics	1.8	%
Medical Supplies	1.8	%
Commercial Services	1.4	%
Retail	1.2	%
Foods	1.2	%
Electric Utilities	1.1	%
Restaurants	1.0	%
Food Retailers	1.0	%
Household Products	1.0	%
Computer Related Services	0.9	%
Healthcare	0.8	%
Home Construction, Furnishings & Appliances	0.7	%
Broadcasting, Publishing & Printing	0.6	%
Computer Integrated Systems Design	0.5	%
Travel	0.5	%
Toys, Games	0.5	%
Industrial—Diversified	0.5	%
Entertainment & Leisure	0.4	%
Building Materials & Construction	0.3	%
Communications	0.3	%
Forest Products & Paper	0.3	%
Containers	0.2	%
Manufacturing	0.2	%
Apparel, Textiles & Shoes	0.1	%
Air Transportation	0.1	%
Tobacco	0.1	%
Computer Programming Services	0.1	%
Beverages	0.1	%
Photography Equipment/ Supplies	0.1	%
Short-Term Investments and Other Assets and Liabilities	0.4	%
	100.0	%

MML Income & Growth Fund
Largest Stock Holdings (12/31/06)

Bank of America Corp.

Chevron Corp.

Citigroup, Inc.

Exxon Mobil Corp.

Hewlett-Packard Co.

International Business Machines Corp.

Morgan Stanley

Pfizer, Inc.

The Goldman Sachs Group, Inc.

Washington Mutual, Inc.

MML Income & Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Income & Growth Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Income & Growth Fund		11.66	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Growth & Income Fund – Portfolio Manager Report

What is the investment objective of the MML Growth & Income Fund – and who is the Fund's sub-adviser?
The Fund seeks capital appreciation and income by investing at least 80% of its net assets, under normal market conditions, in equity securities and equity-related securities. The Fund's sub-adviser is Capital Guardian Trust Company (Capital Guardian).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 4.35%, underperforming the 9.64% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period?
After touching a five-year high, stocks tumbled from mid-May to mid-June, resulting in negative returns for the second quarter. Investors became more cautious, unwinding riskier positions and rotating into defensive areas, such as utilities and consumer staples. Fixed-income markets had slightly negative returns, as bond yields rose across the curve. (The yield curve is a measure of the disparity of yields of bonds of comparable credit quality across a range of maturities from three months to 30 years; it is often used as an economic indicator.) Treasuries outperformed other fixed-income sectors. Within the mortgage sector, greater market volatility curtailed prices.

U.S. stocks rallied to their best third quarter since 1997, sending the S&P 500 Index up 5.2%. The Dow Jones Industrial Average^SM ("the Dow") nearly broke through its all-time high. Value stocks continued to outperform their growth peers and large-cap stocks outpaced small caps. The Federal Reserve ("Fed") left interest rates unchanged at both its rate-setting meetings – the first gap in a tightening campaign that began in 2004. Investors, who cheered the Fed's pause, also were buoyed by weaker inflation figures and increased consumer confidence later in the quarter as energy prices tumbled. The weakening housing market, however, cast a pall over the bullish data.

In the fourth quarter, U.S. stocks rose nearly 7%, helping the S&P 500 Index achieve its biggest annual gain since 2003. The Dow broke through its all-time high, producing its best quarterly gain in three years. Value stocks continued to outperform their growth counterparts and small-cap stocks outpaced large caps. Data released during the quarter indicated that the U.S. economy was resilient. Lower oil prices contributed to diminishing inflation and a healthy rise in consumer spending, and employment and real wages both increased. The Fed left interest rates unchanged at 5.25%, although it cautioned that inflation risks remained. Weakness persisted in the housing sector for most of the quarter, despite the indication (based on November's robust new and existing home sales figures) that the slumping market could be leveling off.

What factors contributed to the Fund's performance?
Within the equity segment of the Fund's portfolio, stock selection was beneficial, especially in the areas of financials, health care and industrials. The portfolio's weighting among the various sectors relative to the benchmark, however, hurt results. The primary detractor was the portfolio's substantial overweight position in information technology stocks. Within the fixed-income portion of the portfolio, we maintained a slightly long duration stance, which helped relative performance. We reduced our allocation to pass-through mortgages from neutral to underweight, which helped results as mortgages underperformed Treasuries on a duration-adjusted basis.

During the third quarter, our stock choices hampered the Fund's relative returns, especially among financial and consumer discretionary companies. As a result of our stock selection, we had a less-than-benchmark weighting among the largest-capitalization stocks, which performed well during the period. Consumer staples stocks were among the bright spots, as our investments in beverage and food makers boosted results.

MML Growth & Income Fund – Portfolio Manager Report (Continued)

Turning to the fourth quarter, our stock selection was less than favorable in the energy, financial and health care areas. The Fund's underweight positions in ExxonMobil and Citigroup hurt relative returns, while American Depository Receipts (ADRs) of AstraZeneca (which is not in the benchmark) sank after the company reported that an experimental stroke drug failed a clinical trial. Conversely, our strong stock selection in consumer staples – including not owning Wal-Mart – supported results, as did our choices in the mega-cap segment of the market.

What is your outlook?
We believe favorable economic, geopolitical and corporate conditions will persist in 2007 and that stocks should reap the rewards. With energy prices stabilizing and inflation returning to the Fed's tolerable range, the economic picture appears bright. We think consumer demand will remain stronger than the market now anticipates, thanks to good employment and wage growth, and it appears that the housing market may be on the mend. However, we also believe the Fed may hold interest rates steady, rather than lowering them in the coming months. Although we expect profit growth to slow somewhat in 2007, there is room for price-to-earnings ratios to expand. By historical standards, stocks still look inexpensive against the current level of b ond yields.

MML Growth & Income Fund – Portfolio Manager Report (Continued)

*MML Growth & Income Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Banking, Savings & Loans	12.4	%
Electrical Equipment & Electronics	10.0	%
Pharmaceuticals	7.4	%
Energy	7.2	%
Computers & Information	5.2	%
Retail	5.1	%
Prepackaged Software	3.7	%
Insurance	3.4	%
Medical Supplies	3.0	%
Commercial Services	2.7	%
Foods	2.6	%
Information Retrieval Services	2.4	%
Industrial—Diversified	2.3	%
Manufacturing	2.1	%
Chemicals	2.0	%
Broadcasting, Publishing & Printing	2.0	%
Beverages	1.9	%
Telephone Utilities	1.8	%
Tobacco	1.8	%
Financial Services	1.7	%
Transportation	1.7	%
Electric Utilities	1.4	%
Healthcare	1.3	%
Aerospace & Defense	1.3	%
Metals & Mining	1.3	%
Lodging	1.1	%
Entertainment & Leisure	1.0	%
Household Products	0.9	%
Machinery & Components	0.9	%
Advertising	0.8	%
Data Processing & Preparation	0.7	%
Computer Programming Services	0.7	%
Computer Integrated Systems Design	0.7	%
Communications	0.7	%
Apparel, Textiles & Shoes	0.6	%
Cosmetics & Personal Care	0.6	%
Automotive & Parts	0.6	%
Home Construction, Furnishings & Appliances	0.4	%
Restaurants	0.4	%
Forest Products & Paper	0.3	%
Computers & Office Equipment	0.3	%
Real Estate	0.2	%
Short-Term Investments and Other Assets and Liabilities	1.4	%
	100.0	%

MML Growth & Income Fund
Largest Stock Holdings (12/31/06)

AstraZeneca PLC Sponsored ADR
(United Kingdom)

Cisco Systems, Inc.

Forest Laboratories, Inc.

General Electric Co.

Google, Inc. Cl. A

Lowe's Companies, Inc.

Microsoft Corp.

SLM Corp.

Wachovia Corp.

Washington Mutual, Inc.

MML Growth & Income Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Growth & Income Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Growth & Income Fund		4.35	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Blue Chip Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Blue Chip Growth Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital growth by normally investing at least 80% of its net assets in the common stocks of large and medium-sized blue chip growth companies. Income is a secondary objective. The Fund's sub-adviser is T. Rowe Price Associates, Inc. (T. Rowe Price).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 6.04%, trailing the 9.64% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period?
The second quarter saw a turnaround in the fortunes of the equity markets (on the heels of a strong first quarter), as investor uncertainty – caused in part by global unrest and rising oil prices – led many of the markets lower. In fact, The Dow Jones Industrial Average^SM was the only domestic equity benchmark to post a return in positive territory, advancing 0.37% for the three months ended June 30, 2006.

What factors contributed to the Fund's performance?
For the time frame from May 1 through December 31, 2006, the industrials and business services sectors outperformed due to strong stock selection. Primary strength came from overweight positions in machinery companies Danaher and Joy Global, as well as defense firms General Dynamics and Rockwell Collins. Stock selection drove outperformance in the consumer discretionary sector, offsetting a slight underweight position. Gaming stocks were the major source of strength. Casino operators Wynn Resorts and MGM Mirage were up on investor hopes for growth in Macau. Slots maker International Game Technology rose on strong replacement sales. Telecommunication services made a positive relative contribution on stock s election. Non-U.S. companies America Movil (Mexico) and Rogers Communication (Canada) were the most significant contributors. An overweight position in U.S. wireless tower operator American Tower Systems also produced benefits.

Conversely, stock selection weighed on information technology sector performance, which was the greatest sector detractor. Semiconductors were weak all year, and portfolio holdings Marvell Technology Group and Maxim Integrated Products made a negative contribution. Yahoo! traded lower throughout the year, as Internet competitor Google continued to distinguish itself as the leader in search and advertising revenues, and as competition rose from new sites such as MySpace. Financials declined due to stock selection. Student loan company SLM Corp. was one of the greatest detractors, falling on concerns about anti-lender legislation in the new congress. Capital markets companies declined behind overweight positions in online brokers TD Ameritrade Holding and E*TRADE Financial. The stock price of investment manager Legg Mason also faltered. Consumer staples was a relative detractor due to our underweight position in that sector.

What is your outlook?
We believe that the market does not fully appreciate the strength in the U.S. and global economies and the resilience of corporate earnings and free cash flow growth. Companies producing stable earnings growth will be afforded higher prices. The outlook appears promising for the U.S. economy and the equities market. The portfolio seeks companies with more diversified revenue streams and those with business leverage outside the United States.

MML Blue Chip Growth Fund – Portfolio Manager Report (Continued)

*MML Blue Chip Growth Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Financial Services	13.0	%
Pharmaceuticals	9.7	%
Electrical Equipment & Electronics	8.8	%
Retail	6.5	%
Insurance	5.1	%
Banking, Savings & Loans	4.9	%
Healthcare	4.9	%
Computers & Information	4.8	%
Prepackaged Software	4.7	%
Energy	4.6	%
Communications	4.4	%
Industrial—Diversified	3.8	%
Information Retrieval Services	3.6	%
Medical Supplies	3.4	%
Machinery & Components	2.7	%
Lodging	2.7	%
Cosmetics & Personal Care	1.6	%
Broadcasting, Publishing & Printing	1.6	%
Data Processing & Preparation	1.2	%
Aerospace & Defense	1.1	%
Home Construction, Furnishings & Appliances	1.0	%
Beverages	0.8	%
Chemicals	0.8	%
Computer Integrated Systems Design	0.6	%
Manufacturing	0.5	%
Advertising	0.5	%
Commercial Services	0.5	%
Foods	0.4	%
Transportation	0.4	%
Household Products	0.3	%
Telephone Utilities	0.3	%
Restaurants	0.1	%
Automotive & Parts	0.1	%
Apparel, Textiles & Shoes	0.0	%
Short-Term Investments and Other Assets and Liabilities	0.6	%
	100.0	%

MML Blue Chip Growth Fund
Largest Stock Holdings (12/31/06)

American International Group, Inc.

Cisco Systems, Inc.

Danaher Corp.

General Electric Co.

Google, Inc. Cl. A

Kohl's Corp.

Microsoft Corp.

Schlumberger Ltd.

State Street Corp.

UnitedHealth Group, Inc.

MML Blue Chip Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Blue Chip Growth Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Blue Chip Growth Fund		6.04	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Large Cap Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Large Cap Growth Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital appreciation by normally investing at least 80% of its net assets in the common stocks and securities convertible into common stocks of companies which the Fund's sub-adviser believes offer prospects for long-term growth and which, at the time of purchase, have market capitalizations of at least approximately $10 billion. The Fund's sub-adviser is AllianceBernstein L.P. (AllianceBernstein).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 0.10%, underperforming the 9.64% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What was the investment backdrop during the period?
For the second quarter of 2006, U.S. equity markets were down nearly across the board, as fears of the Federal Reserve ("Fed") increasing interest rates to combat inflation drove the yield on the 10-year Treasury up 0.30% to 5.14%. The market uncertainty that emerged in the first quarter accelerated in the second, and investors who had not experienced as much volatility in recent years saw more of it in day-to-day returns. Growth stocks in particular suffered more than their share of this volatility.

Both the stock and bond markets saw good returns in the third quarter. Markets held up well on news of the Fed's decision to hold interest rates steady in both August and September, falling crude oil prices and favorable readings in some key inflation measures. Foreign stocks also fared well. Domestic stocks forged higher once again during the fourth quarter. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance?
The volatility of growth stocks in the second quarter hampered the Fund's performance, as the portfolio had been aggressively positioned (albeit prematurely) for a return to a growth cycle. The Fund's second quarter challenges were also related to stock-specific issues with several information technology and health care holdings, compounded by overall market concerns, including inflation worries. The information technology sector was the largest detractor from the Fund's performance relative to its benchmark, the S&P 500 Index. Conversely, the largest contribution to the Fund's relative returns in the second quarter came from our overweight stake in the energy sector, which was one of the top performer s during the period.

The information technology sector was the largest detractor from performance in the third quarter. The energy sector was the second-largest drag on the Fund's results – and the Fund's overweight position in the sector magnified the problem. Despite this, sector allocation contributed slightly to the Fund's performance. For example, our underweight position in the industrials sector, which underperformed the benchmark, limited the negative impact of the sector. We also benefited from the portfolio's overweight position in the top-performing financials sector.

Turning to the fourth quarter, the Fund fell victim to stock-specific issues related to several of our health care and information technology holdings. In particular, the health care sector was the largest detractor from performance. On the positive side, our top contributors were Google, Merrill Lynch, Apple and Goldman Sachs. Looking at performance in the aggregate by sector, the industrials and consumer discretionary sectors were the largest contributors to performance.

What is your outlook? We don't expect upward earnings revisions to remain as plentiful as they have been, particularly if the U.S. economy continues to decelerate, which is the universal expectation. Without the economic boost that domestic stocks have been enjoying, fewer will be able to beat earnings expectations with regularity, and those that do should be increasingly prized. The Fund is well positioned to take advantage of a potential rebound in the growth investment style.

MML Large Cap Growth Fund – Portfolio Manager Report (Continued)

*MML Large Cap Growth Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Financial Services	15.2	%
Pharmaceuticals	11.4	%
Insurance	7.5	%
Computers & Information	7.0	%
Aerospace & Defense	6.0	%
Information Retrieval Services	5.9	%
Energy	5.7	%
Electrical Equipment & Electronics	5.0	%
Retail	4.2	%
Cosmetics & Personal Care	3.8	%
Broadcasting, Publishing & Printing	3.7	%
Banking, Savings & Loans	3.6	%
Communications	3.6	%
Lodging	3.3	%
Commercial Services	2.1	%
Industrial—Diversified	2.0	%
Restaurants	2.0	%
Computers & Office Equipment	1.9	%
Chemicals	1.8	%
Prepackaged Software	1.2	%
Beverages	0.9	%
Foods	0.7	%
Apparel, Textiles & Shoes	0.5	%
Short-Term Investments and Other Assets and Liabilities	1.0	%
	100.0	%

MML Large Cap Growth Fund
Largest Stock Holdings (12/31/06)

Alcon, Inc.

Apple, Inc.

Boeing Co.

Broadcom Corp. Cl. A

Cisco Systems, Inc.

Google, Inc. Cl. A

Halliburton Co.

Merrill Lynch & Co., Inc.

The Procter & Gamble Co.

WellPoint, Inc.

MML Large Cap Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Large Cap Growth Fund and the S&P 500 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Large Cap Growth Fund		0.10	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Concentrated Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Concentrated Growth Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term growth of capital by investing primarily in common stocks of companies that the Fund's sub-adviser, Legg Mason Capital Management, Inc. (Legg Mason), believes offer above-average growth potential and trade at a significant discount to the sub-adviser's assessment of their intrinsic value. Any income realized will be incidental to the Fund's objective.

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, its Class I shares returned 2.19%, lagging the 9.64% return of the S&P 500^® Index, a widely recognized, unmanaged index representative of common stocks of larger capitalized U.S. companies.

What factors contributed to the Fund's performance?
Overall, the Fund's performance during the two-month period ended June 30, 2006 was hurt most by the dismal returns of its health care and technology investments, as well as a significantly overweight position in the consumer discretionary sector, where its holdings underperformed those of the benchmark (S&P 500) Index. On the upside, strong returns from individual securities such as Google and Amazon.com bolstered performance along with underweight positions in several sectors where the portfolio generated less-than-favorable relative returns. From a sector allocation perspective, the Fund's absence from the consumer staples and other energy sectors, both of which generated above-average returns, hurt performance. On the other hand, our overweight position in the strong autos and transportation sector, and our underweight position in technology, which was the worst-performing sector of the benchmark, partially mitigated some of those effects.

During the third quarter, weak results from its technology and health care investments hindered the Fund's performance most despite an underweight position in those groups relative to the benchmark. A sizeable overweight position in the weak consumer discretionary sector also was a meaningful detractor. On the upside, our absence from energy-related stocks bolstered relative returns. From a sector allocation perspective, performance suffered most from an overweight position in consumer discretionary, which underperformed the broad market amid fears of a consumer slowdown. Performance also fell victim to underweight positions in health care and technology, which generated above-average returns, and by an overweight position in the lagging autos/transportation group. In a reversal of fortunes from past quarters, the portfolio's absence from other energy, which performed poorly (given the 15% drop in oil prices during the period), buoyed return s.

During the fourth quarter, the Fund's results reflected a rebound from the Fund's consumer discretionary holdings. Strong returns from financial services and health care holdings also helped performance. On the downside, our absence from commodity-based businesses and weak returns from

MML Concentrated Growth Fund – Portfolio Manager Report (Continued)

our producer durables stocks hurt our performance. From a sector allocation perspective, overweight positions in the outperforming consumer discretionary and financial services sectors helped performance most. Underweight positions in the weaker-performing health care and consumer staples sectors also boosted results. On the downside, absence from the rebounding materials and processing, other energy and integrated oils groups hindered results.

What is your outlook?
We firmly believe that 2007 will be a good year for the U.S. equity market – and that it has the potential to be a great year. Our view is that market returns in 2007 will be driven by a combination of moderate earnings growth, dividend returns and some degree of price-to-earnings (P/E) multiple expansion. In our opinion, how good 2007 turns out to be could be largely determined by how much of a boost P/E multiple expansion provides.

MML Concentrated Growth Fund – Portfolio Manager Report (Continued)

*MML Concentrated Growth Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Communications	12.9	%
Financial Services	12.6	%
Information Retrieval Services	12.3	%
Retail	10.3	%
Insurance	9.6	%
Commercial Services	7.6	%
Computers & Information	7.3	%
Electrical Equipment & Electronics	7.2	%
Computer Related Services	4.2	%
Prepackaged Software	4.1	%
Travel	2.6	%
Apparel, Textiles & Shoes	2.5	%
Machinery & Components	2.0	%
Medical Supplies	1.9	%
Transportation	1.9	%
Short-Term Investments and Other Assets and Liabilities	1.0	%
	100.0	%

MML Concentrated Growth Fund
Largest Stock Holdings (12/31/06)

Amazon.com, Inc.

American International Group, Inc.

Citigroup, Inc.

Countrywide Financial Corp.

eBay, Inc.

General Electric Co.

Google, Inc. Cl. A

Nokia Oyj Sponsored ADR (Finland)

Qualcomm, Inc.

Yahoo!, Inc.

MML Concentrated Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Concentrated Growth Fund Class I, Class II, and the S&P 500 Index.

MML Series Investment Fund

Total Returns	_{Since Inception}_{5/1/06 - 12/31/06}
MML Concentrated Growth Fund Class I		2.19	%
MML Concentrated Growth Fund Class II		2.25	%
S&P 500 Index		9.64	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

MML Mid Cap Value Fund – Portfolio Manager Report

What is the investment objective of the MML Mid Cap Value Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital growth. Income is a secondary objective. The Fund's sub-adviser is American Century Investment Management, Inc. (American Century).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 11.23%, outpacing the 6.36% return of the Russell Midcap^® Index, an unmanaged index that measures the performance of the 800 smallest companies in the Russell 1000^® Index, a capitalization-weighted index of the 1,000 U.S. companies with the largest market capitalization. In addition, the Fund also outperformed the 8.70% return of the Russell 3000^® Index, an unmanaged, capitalization-weighted Index that measures the performance of the 3,000 U.S. companies with the largest market capitalization.

What was the investment backdrop during the period?
Three factors that had been weighing on the market for the better part of a year – high energy prices, uneasiness about inflation and rising interest rates – precipitated a global flight from stocks midway through the second quarter of 2006. The pivot point was May 10, when the Federal Reserve ("Fed"), seeking to control inflation, raised its short-term target interest rate for the 16th consecutive time since June 2004. Stocks cut a choppy path through June, as investors weighed whether the Fed would increase interest rates again at the end of the month. In the third quarter, the equity markets experienced a turnaround. Declining oil prices, a continuing pause in Fed interest rate hikes (after it s first pause in late June) and diminished inflation concerns enabled stocks to enjoy a late summer rally and turn in strong results for the quarter. The S&P 500^® Index, representing the broad market, gained 5.67%, providing its strongest three-month performance in nine years.

What factors contributed to the Fund's performance?
In the second quarter's volatile market climate, effective stock selection in information technology companies and strategic weightings in consumer staples businesses contributed the most to the Fund's performance relative to the Russell Midcap Index (the "benchmark"). On the downside, the Fund's holdings in consumer discretionary businesses, along with energy investments, hindered returns.

In the third quarter, the materials sector contributed the most to the Fund's relative performance. Stock selection spelled the difference: The sector carried the portfolio, while providing negative results for the benchmark. Energy companies also represented another significant source of performance for the Fund in the third quarter, even as the sector turned in negative results for its similarly weighted benchmark. The Fund's management team limited the portfolio's energy investments to oil and gas companies, while avoiding the equipment and services side of the industry, which slowed the benchmark. On the downside, consumer discretionary stocks – businesses involved in pursuits that include hotels and restaurants, retailing, media and automobile components – represented the portfolio's only meaningful source of relative underperformance during the third quarter. Much of the shortfall was traced to overweight positions in casual dining restaurants and low-end retailers. Turning to the fourth quarter, the materials sector contributed the most to the Fund's performance in relative terms as stock selection, coupled with a decision to carry a larger complement of chemical companies, worked to the portfolio's advantage. Information technology companies represented another source of performance against the benchmark, the result of effective stock selections among semiconductor and software companies. Finally, while they contributed to the portfolio's absolute results, industrial companies were the largest detractors in relative terms.

MML Mid Cap Value Fund – Portfolio Manager Report (Continued)

What is your outlook?
The portfolio's management team seeks to help investors achieve long-term capital growth by investing in medium-sized companies – and remains committed to its discipline of seeking medium-sized companies whose shares appear to be undervalued for reasons unrelated to the firms' fundamental or financial health. We will continue to keep a watchful eye on the various factors that have had a strong influence over the markets for the past several years – specifically, oil prices, inflation, geopolitical unrest and Fed policy. While no one can be sure precisely how these factors will affect the equity markets in 2007, we are confident that the Fund is positioned to handle the wide array of market conditions that investors could face throughout the coming year.

MML Mid Cap Value Fund – Portfolio Manager Report (Continued)

*MML Mid Cap Value Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Banking, Savings & Loans	10.5	%
Electric Utilities	7.2	%
Insurance	7.1	%
Medical Supplies	5.4	%
Energy	5.4	%
Foods	4.8	%
Beverages	4.3	%
Financial Services	3.9	%
Telephone Utilities	3.9	%
Entertainment & Leisure	3.9	%
Commercial Services	3.5	%
Chemicals	2.9	%
Electrical Equipment & Electronics	2.5	%
Healthcare	2.4	%
Metals & Mining	2.4	%
Cosmetics & Personal Care	2.3	%
Retail	1.9	%
Forest Products & Paper	1.7	%
Household Products	1.6	%
Pharmaceuticals	1.5	%
Automotive & Parts	1.5	%
Restaurants	1.5	%
Oil & Gas	1.3	%
Aerospace & Defense	1.3	%
Transportation	1.2	%
Computer Integrated Systems Design	1.2	%
Manufacturing	1.1	%
Heavy Machinery	0.8	%
Air Transportation	0.8	%
Industrial—Distribution	0.7	%
Home Construction, Furnishings & Appliances	0.7	%
Building Materials & Construction	0.6	%
Prepackaged Software	0.6	%
Containers	0.6	%
Toys, Games	0.5	%
Real Estate	0.5	%
Computers & Office Equipment	0.5	%
Communications	0.4	%
Computers & Information	0.3	%
Short-Term Investments and Other Assets and Liabilities	4.8	%
	100.0	%

MML Mid Cap Value Fund
Largest Stock Holdings (12/31/06)

Beckman Coulter, Inc.

Coca-Cola Enterprises, Inc.

Commonwealth Telephone Enterprises, Inc.

Equitable Resources, Inc.

Heinz (H. J.) Co.

Kimberly-Clark Corp.

MGIC Investment Corp.

Puget Energy, Inc.

Speedway Motorsports, Inc.

Symmetry Medical, Inc.

MML Mid Cap Value Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Mid Cap Value Fund, the Russell Midcap Index, and the Russell 3000 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Mid Cap Value Fund		11.23	%
Russell Midcap Index		6.36	%
Russell 3000 Index		8.70	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the Russell Midcap Index and Russell 3000 Index are unmanaged, do not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Mid Cap Growth Fund – Portfolio Manager Report

What is the investment objective of the MML Mid Cap Growth Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital appreciation by investing, under normal conditions, at least 80% of its net assets in a broadly diversified portfolio of common stocks of mid-cap companies whose earnings the Fund's sub-adviser, T. Rowe Price Associates, Inc. (T. Rowe Price), expects to grow at a faster rate than the average company.

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 0.50%, trailing the 1.07% return of the S&P MidCap 400^® Index, a widely recognized, unmanaged index representative of common stocks of mid-capitalized U.S. companies.

What was the investment backdrop during the period?
During the second quarter of 2006, there was a turnaround in the fortunes of the equity markets (after a strong first quarter), as investor uncertainty – caused in part by global unrest and rising oil prices – led many of the markets lower. In fact, The Dow Jones Industrial Average^SM was the only domestic equity benchmark to post a return in positive territory, with its 0.37% advance. Large caps outpaced mid- and small caps during the period, and growth trailed value.

What factors contributed to the Fund's performance?
From the Fund's inception on May 1, 2006 through December 31, 2006, the information technology sector weighed most significantly on relative results. Although Fund management focuses on companies with strong business models, durable franchises and skilled management teams, these were not the characteristics favored by the market during the period. Business spending on technology has reached near 10-year low levels, and investor sentiment toward the sector, consequently, has been unenthusiastic. Our stock selection in the health care sector also hurt relative results, as our choices in biotechnology, managed care and generic pharmaceuticals disappointed. In financials, our lack of exposure to Real Estate In vestment Trusts (REITs), which performed exceptionally well in 2006, also detracted – as increased merger and acquisition activity plus a healthy outlook for rental and occupancy rates stimulated favorable results for the group.

On the upside, within the consumer discretionary sector, our stock selection in media and Internet catalog and retail aided relative performance. Amazon.com reported an increase in revenues across its businesses as it beat expectations. Positive guidance for the upcoming quarter also helped the share price increase. Our overweight in the telecommunication services sector also made positive contributions to relative performance in the period. Our overweight position was driven by our exposure to wireless telecommunication services. Recently, growth in wireless has been strong, as wireless spectrum auctions and 3G license grants in developing countries have been fueling the next leg of growth.

What is your outlook?
Overall, we remain optimistic about the portfolio's prospects, even as we are somewhat guarded about the economic environment. We will continue to utilize the same techniques for finding reasonably priced growth stocks that have served us well in the past.

MML Mid Cap Growth Fund – Portfolio Manager Report (Continued)

*MML Mid Cap Growth Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Electrical Equipment & Electronics	9.5	%
Pharmaceuticals	7.4	%
Commercial Services	7.0	%
Retail	6.4	%
Communications	5.9	%
Healthcare	5.4	%
Energy	4.5	%
Prepackaged Software	4.4	%
Financial Services	4.1	%
Advertising	4.0	%
Machinery & Components	3.9	%
Medical Supplies	3.3	%
Computers & Information	3.2	%
Computer Integrated Systems Design	2.5	%
Aerospace & Defense	2.3	%
Insurance	2.0	%
Metals & Mining	1.9	%
Telephone Utilities	1.7	%
Computer Related Services	1.7	%
Information Retrieval Services	1.6	%
Transportation	1.5	%
Lodging	1.2	%
Home Construction, Furnishings & Appliances	1.2	%
Computer Programming Services	1.1	%
Restaurants	1.1	%
Industrial – Diversified	1.1	%
Banking, Savings & Loans	1.0	%
Air Transportation	1.0	%
Automotive & Parts	0.9	%
Manufacturing	0.7	%
Heavy Machinery	0.7	%
Telecommunications	0.5	%
Entertainment & Leisure	0.4	%
Foods	0.4	%
Computer & Other Data Processing Service	0.3	%
Beverages	0.3	%
Retail—Grocery	0.2	%
Apparel, Textiles & Shoes	0.2	%
Broadcasting, Publishing & Printing	0.1	%
Electric Utilities	0.1	%
Data Processing & Preparation	0.1	%
Cosmetics & Personal Care	0.1	%
Industrial—Distribution	0.1	%
Chemicals	0.1	%
Heavy Construction	0.0	%
Household Products	0.0	%
Containers	0.0	%
Short-Term Investments and Other Assets and Liabilities	2.9	%
	100.0	%

MML Mid Cap Growth Fund
Largest Stock Holdings (12/31/06)

Amazon.com, Inc.

American Tower Corp. Cl. A

Cephalon, Inc.

Crown Castle International Corp.

International Game Technology

Lamar Advertising Co.

Manpower, Inc.

Rockwell Collins, Inc.

Roper Industries, Inc.

Smith International, Inc.

MML Mid Cap Growth Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Mid Cap Growth Fund and the MidCap 400 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Mid Cap Growth Fund		0.50	%
S&P MidCap 400 Index		1.07	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the S&P MidCap 400 Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Small Cap Value Fund – Portfolio Manager Report

What is the investment objective of the MML Small Cap Value Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term total return by investing, under normal circumstances, at least 80% of its net assets, plus any borrowings for investment purposes (measured at time of purchase), in a broadly diversified portfolio of equity investments in small-cap U.S. issuers, including foreign issuers that are traded in the United States. The Fund's sub-adviser is Goldman Sachs Asset Management, L.P. (GSAM).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 5.20%, underperforming the 8.50% return of the Russell 2000^® Value Index, a widely recognized, unmanaged index that measures the performance of those Russell 2000^® Index Companies with lower price-to-book ratios and lower forecasted growth rates.

What was the investment backdrop during the period?
The second quarter saw a turnaround in the fortunes of the equity markets (after an extremely strong first quarter), as investor uncertainty – caused in part by global unrest and rising oil prices – led many of the markets lower. In fact, The Dow Jones Industrial Average^SM was the only domestic equity benchmark to post a return in positive territory, advancing 0.37%.

Both the stock and bond markets saw good returns in the third quarter of 2006. Markets held up well on news of the Federal Reserve's ("Fed's") decision to hold interest rates steady in both August and September, falling crude oil prices and favorable readings in some key inflation measures. Foreign stocks also fared well. Domestic stocks forged higher once again during the fourth quarter, reaching some notable milestones along the way. The U.S. dollar weakened slightly during the period, supporting the returns of foreign stocks and helping the MSCI^® EAFE^® Index to rise 10.35%. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance?
During the two-month period ended June 30, 2006, returns to our investment themes were mixed. Profitability was the best-performing theme, followed by Valuation, Analyst Sentiment and Management Impact. On the downside, Momentum and Earnings Quality hurt relative returns. In addition, the Fund's stock selection hampered its performance, as its holdings in the consumer discretionary and information technology sectors detracted the most from the Fund's progress. Conversely, our stock picks in industrials outpaced their peers in the benchmark the most, but did little to offset losses experienced elsewhere. Turning to the third quarter, the Fund's trading in September increased its position in technology and d ecreased its weighting in industrials. Relative to the Russell 2000 Index, the Fund was tilted slightly towards value and larger issues (with respect to company size). During the third quarter, the Fund held underweight positions in both the financials and health care sectors.

In the final quarter of 2006, the Fund underperformed the Russell 2000 Value Index. Returns to our investment themes were once again mixed – Management Impact was the biggest positive contributor to excess returns, followed by Valuation and Profitability. On the downside, Earnings Quality was the worst-performing theme. Analyst Sentiment and Momentum also detracted from relative performance. Conversely, stock selection was positive overall among sectors, particularly in health care – although our stock picks in the consumer discretionary sector lagged their peers in the benchmark.

What is your outlook?
Looking ahead, we continue to believe that cheaper stocks may outpace more expensive ones and good momentum stocks may do better than poor momentum stocks. We also prefer companies about which fundamental research analysts are becoming more positive – and firms that are profitable, have sustainable earnings and use their capital to enhance shareholder value. As such, we anticipate remaining fully invested and expect that the value we add over time may be due to stock selection rather than sector or size allocations.

MML Small Cap Value Fund – Portfolio Manager Report (Continued)

*MML Small Cap Value Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Banking, Savings & Loans	14.4	%
Financial Services	13.1	%
Insurance	6.9	%
Commercial Services	6.9	%
Prepackaged Software	4.2	%
Electric Utilities	4.0	%
Chemicals	3.5	%
Retail	3.5	%
Pharmaceuticals	3.4	%
Apparel, Textiles & Shoes	3.3	%
Communications	3.2	%
Foods	2.7	%
Energy	2.6	%
Restaurants	2.5	%
Computer Integrated Systems Design	2.4	%
Broadcasting, Publishing & Printing	2.3	%
Automotive & Parts	2.1	%
Building Materials & Construction	1.6	%
Electrical Equipment & Electronics	1.6	%
Home Construction, Furnishings & Appliances	1.4	%
Forest Products & Paper	1.3	%
Transportation	1.3	%
Computer Programming Services	1.0	%
Healthcare	1.0	%
Metals & Mining	0.9	%
Heavy Construction	0.9	%
Heavy Machinery	0.8	%
Telephone Utilities	0.8	%
Lodging	0.7	%
Aerospace & Defense	0.7	%
Medical Supplies	0.5	%
Real Estate	0.5	%
Machinery & Components	0.4	%
Data Processing & Preparation	0.4	%
Manufacturing	0.3	%
Information Retrieval Services	0.3	%
Agribusiness	0.3	%
Food Retailers	0.2	%
Beverages	0.2	%
Computers & Information	0.2	%
Entertainment & Leisure	0.2	%
Advertising	0.2	%
Computer Related Services	0.1	%
Industrial—Diversified	0.1	%
Internet Software	0.1	%
Cosmetics & Personal Care	0.0	%
Short-Term Investments and Other Assets and Liabilities	1.0	%
	100.0	%

MML Small Cap Value Fund
Largest Stock Holdings (12/31/06)

American Home Mortgage Investment Corp. REIT

AMERIGROUP Corp.

Downey Financial Corp.

Hanmi Financial Corp.

Ikon Office Solutions, Inc.

Jack in the Box, Inc.

Mentor Graphics Corp.

NBTY, Inc.

OM Group, Inc.

Polycom, Inc.

MML Small Cap Value Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Small Cap Value Fund and the Russell 2000 Value Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Small Cap Value Fund		5.20	%
Russell 2000 Value Index		8.50	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the Russell 2000 Value Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Small Cap Index Fund – Portfolio Manager Report

What is the investment objective of the MML Small Cap Index Fund – and who is the Fund's sub-adviser?
The Fund seeks to provide investment results approximating (before fees and expenses) the aggregate price and dividend performance of the securities in the Standard & Poor's SmallCap 600^® Index (S&P SmallCap 600 Index). The Fund's sub-adviser is Northern Trust Investments, N.A. (Northern).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 1.41%, moderately trailing the 2.03% return of the S&P SmallCap 600 Index, a widely recognized, capitalization-weighted unmanaged index of common stocks chosen by Standard & Poor's for industry group representation, market size, liquidity, adequate float size and other trading requirements. The Index tracks the performance of the small-cap portion of the U.S. equity market. As of February 28, 2006, the approximate market capitalization range of companies included in the S&P SmallCap 600 Index was between $55 million and $4.2 billion.

What was the investment backdrop during the period?
Numerous factors weighed on investor sentiment during the first six months of 2006. The steady rise in energy and commodity prices fueled concerns about inflationary pressure on the U.S. economy. The lack of substantial progress in talks with Iran regarding their nuclear program contributed substantially to rising oil prices: Crude oil prices finished the first half of the year just above $70 per barrel after reaching a high of $75 in late April. In addition, the escalation of the conflict with North Korea, culminating in the testing of long-range missiles, added to the nervousness that pervaded the financial markets during this period. Finally, the Federal Reserve ("Fed") maintained its tightening policy and increased interest rates by 0.25% at each of the four Federal Open Market Committee ("FOMC") meetings that took place in the first half of 2006. The last increase on June 29, the 17th consecutive one since June 2004, brought the federal funds rate to 5.25%.

Equity markets benefited broadly during the third quarter from a 3.9% fall in oil prices. Also contributing to the markets' strength was the continued decline in interest rates (the Fed began its pause in August). The 10-year U.S. Treasury yield slipped to about 4.6% by the end of the quarter. Broadly speaking, equity investors saw lower energy costs and interest rates as beneficial to consumers and businesses. In the fourth quarter, domestic stocks forged higher once again, reaching some notable milestones along the way. The factors that initially triggered the summer stock market rally continued to support stock prices during the final quarter of 2006 – namely, the Fed's extended pause with regard to interest rate increases and lower crude oil prices.

What factors contributed to the Fund's performance?
Nine out of 10 of the Fund's sectors posted positive performance in the second quarter. The strongest-performing sectors were energy, materials and consumer staples. The Fund's largest sector position, industrials, also advanced during the period. Information technology was the only sector that posted a negative return for the quarter ended June 30, 2006.

In the third quarter, six out of 10 sectors posted positive performance. The strongest-performing sectors were telecommunication services and utilities. The Fund's largest sector positions, industrials and information technology, turned in mixed results – the Fund's industrials holdings advanced, but its information technology investments lost ground during the period. The worst-performing sector was energy, which posted a double-digit loss. In the final three months of 2006, the strongest-performing sectors were materials, telecommunication services and industrials. The worst-performing sector was financials – even though it posted a single-digit a dvance.

What is your outlook?
We will continue to keep a watchful eye on the various factors that have had a strong influence over the markets for the past several years – specifically, oil prices, inflation, geopolitical unrest and Fed policy. While no one can be sure precisely how these factors will affect the equity markets in 2007, we are confident that the Fund is positioned to pursue returns consistent with those of the S&P Small Cap 600 Index.

MML Small Cap Index Fund – Portfolio Manager Report (Continued)

*MML Small Cap Index Fund* *Industry Table* *(% of Net Assets) on 12/31/06*
Energy	9.2	%
Electrical Equipment & Electronics	8.2	%
Banking, Savings & Loans	6.8	%
Commercial Services	6.2	%
Financial Services	6.0	%
Medical Supplies	5.2	%
Apparel, Textiles & Shoes	3.9	%
Metals & Mining	3.6	%
Insurance	3.5	%
Retail	3.3	%
Prepackaged Software	3.2	%
Healthcare	3.2	%
Machinery & Components	2.9	%
Transportation	2.5	%
Foods	2.4	%
Restaurants	2.4	%
Heavy Machinery	2.2	%
Home Construction, Furnishings & Appliances	1.9	%
Computer Integrated
Systems Design	1.8	%
Pharmaceuticals	1.8	%
Automotive & Parts	1.8	%
Chemicals	1.7	%
Building Materials & Construction	1.5	%
Forest Products & Paper	1.5	%
Electric Utilities	1.5	%
Computers & Information	1.3	%
Communications	1.2	%
Entertainment & Leisure	1.0	%
Computer Related Services	0.9	%
Aerospace & Defense	0.8	%
Data Processing & Preparation	0.8	%
Telephone Utilities	0.7	%
Air Transportation	0.7	%
Manufacturing	0.6	%
Lodging	0.4	%
Consumer Products	0.3	%
Toys, Games	0.3	%
Agribusiness	0.2	%
Household Products	0.2	%
Information Retrieval Services	0.2	%
Environmental Controls	0.2	%
Water Companies	0.1	%
Tobacco	0.1	%
Broadcasting, Publishing & Printing	0.1	%
Heavy Construction	0.1	%
Photography Equipment/ Supplies	0.1	%
Industrial—Diversified	0.1	%
Computer Programming Services	0.1	%
Beverages	0.1	%
Containers	0.0	%
Cosmetics & Personal Care	0.0	%
Short-Term Investments and Other Assets and Liabilities	1.2	%
	100.0	%

MML Small Cap Index Fund
Largest Stock Holdings (12/31/06)

Cimarex Energy Co.

Energen Corp.

Essex Property Trust, Inc. REIT

Frontier Oil Corp.

Global Payments, Inc.

Helix Energy Solutions Group, Inc.

NVR, Inc.

Southern Union Co.

The Manitowoc Co., Inc.

Veritas DGC, Inc.

MML Small Cap Index Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Small Cap Index Fund and the S&P SmallCap 600 Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Small Cap Index Fund		1.41	%
S&P SmallCap 600 Index		2.03	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the S&P SmallCap 600 Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Global Fund – Portfolio Manager Report

What is the investment objective of the MML Global Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital appreciation by mainly investing in the securities of U.S. and foreign companies, including companies in developed and emerging industrialized markets. The Fund's sub-adviser is Neuberger Berman Management, Inc. (Neuberger Berman).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, its Class I shares returned 6.25%, lagging the 9.31% return of the Morgan Stanley Capital International, Inc. (MSCI^®) World Index, an unmanaged index of issuers listed on the stock exchanges of 20 foreign countries and the U.S.

What was the investment backdrop during the period?
Global asset markets fell sharply during the two-month period ended June 30, 2006. Interest rate increases announced in many countries accentuated concerns over the continuation of global economic growth. International markets underperformed the U.S. during this period.

In a turnaround, global equity markets advanced in the third quarter of 2006. In particular, U.S. equities bounced back after weakness during the second quarter, as a pause in interest rate increases, accompanied by a drop in the price of oil and other commodities, helped to ease inflation-related concerns. Value-oriented large caps continued to lead the market performance. International markets underperformed the U.S. during this period. In the fourth quarter, both global and U.S. equity markets performed strongly, with international markets mostly outperforming the U.S. Domestically, value stocks fared better than their growth counterparts across the market capitalization spectrum.

What factors contributed to the Fund's performance?
During the two-month period ended June 30, the U.S. equity component of the portfolio benefited from the utilities and consumer staples sectors. The contributions from those market segments were more than offset, however, by negative contributions from the financials, information technology, energy, materials and health care sectors. On the other hand, the Fund's overweight position in low-beta stocks and an underweight allocation to high price-earnings stocks helped performance. The international equity component of the portfolio was held back by the disappointing performance of the Fund's investments in the information technology sector. The Fund, however, was bolstered by strong stock selection in indus trials, consumer staples and consumer discretionary. On a geographic basis, the Fund benefited from its underweight position in the Japanese stock market – additionally, the portfolio's overweight position in Ireland continued to enhance relative performance. Strong stock selection in Belgium and Sweden also contributed to returns. Conversely, underperformance by several UK-based financial stocks held back the Fund's progress.

In the third quarter, the Fund's performance in the international equity component of the portfolio was hampered by the disappointing performance of its energy sector holdings. Investments in the financial sector also hindered the Fund's results. Conversely, the portfolio was supported by strong stock selection in consumer staples and information technology. From a geographic perspective, the portfolio benefited from its underweight position in the Japanese stock market – and it continued to be rewarded by its overweight stake in Ireland. Strong stock selection in Germany and Belgium also contributed to returns. The U.S. equity component of the portfolio benefited, during the third quarter, from strong contributions from portfolio holdings in the financials, information technology and health car e sectors. The results of energy holdings were weak, reflecting the sharp sell-off in oil prices over the quarter.

Finally, in the fourth quarter, both global and U.S. equity markets performed strongly, with international markets mostly outperforming the U.S. during the period. The Fund gained strength from its telecommunications, utilities and materials holdings. Domestically, value stocks fared better than their growth counterparts across the market capitalization spectrum.

What is your outlook?
In our opinion, sustainable, moderate growth suggests a favorable backdrop for international stocks over the near to mid term, although potential further interest rate increases by non-U.S. central banks could add to volatility. We think that valuations of international stocks, despite strong performance in recent years, remain reasonable relative to U.S. stocks. We also expect the U.S. dollar to weaken over the longer term. In our view, this would likely benefit dollar-based investors in international stocks. Domestically, we remain relatively positive on the U.S. equity market in 2007.

MML Global Fund – Portfolio Manager Report (Continued)

*MML Global Fund* *Largest Country Weightings (12/31/06)*
United States	40.2	%
United Kingdom	11.5	%
Japan	8.2	%
Ireland	5.9	%
Canada	5.8	%
France	3.8	%
Australia	3.4	%
Brazil	3.1	%
Germany	4.2	%
Belgium	2.7	%
South Korea	2.0	%
Netherlands	1.8	%
Switzerland	1.1	%
Sweden	0.9	%
Italy	0.8	%
Bermuda	0.7	%
Luxembourg	0.6	%
Greece	0.6	%
Norway	0.4	%
Spain	0.4	%
Cayman Islands	0.2	%
Short-Term Investments and Other Assets and Liabilities	1.7	%
	100.0	%

MML Global Fund
Largest Stock Holdings (12/31/06)

Anglo Irish Bank Corp. PLC

Bank of America Corp.

Barclays PLC

Burren Energy PLC

Citigroup, Inc.

ConocoPhillips

Exxon Mobil Corp.

Porsche AG

Punch Taverns PLC

Vodafone Group PLC

MML Global Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Global Fund Class I, Class II, and the MSCI World Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Global Fund Class I		6.25	%
MML Global Fund Class II		6.30	%
MSCI World Index		9.31	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the MSCI World Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Foreign Fund – Portfolio Manager Report

What is the investment objective of the MML Foreign Fund – and who is the Fund's sub-adviser?
The Fund seeks long-term capital growth by investing, under normal market conditions, at least 80% of its net assets in the investments of issuers located outside the U.S., including those in emerging markets. The Fund's sub-adviser is Templeton Investment Counsel, LLC (Templeton).

How did the Fund perform during the eight months ended December 31, 2006?
Since the Fund's inception on May 1, 2006, it returned 11.26%, outpacing the 10.23% return of the Morgan Stanley Capital International, Inc. (MSCI^®) EAFE^® Index, a widely recognized, unmanaged index representative of foreign securities in the major non-U.S. markets of Europe, Australia and the Far East.

What was the investment backdrop during the period?
Global economic growth was strong during the six-month period ended June 30, 2006. Signs of moderation in this strength, however, appeared in the latter part of the period, primarily due to three factors. First, many central banks, including the world's three largest, continued to tighten monetary policy, thereby reducing the immense liquidity in the markets. Second, over the last few months of the second quarter, sustained high energy prices seemed to have contributed to a rise in broad measures of inflation – and the perception of inflation was widespread. L astly, the U.S. housing market showed evidence of cooling.

Global equity markets performed well during the third quarter. Investors focused on declining energy prices, lessening inflationary pressures and the likely end to short-term interest rate hikes by the Federal Reserve – and de-emphasized the potential threat of a U.S. housing market bust and accompanying consumer spending slowdown. International markets continued their advance in the third quarter. In the fourth quarter, stock market indexes in the U.S. and most European countries reached six-year highs and many emerging market indexes in Asia, Europe and Latin America rose to all-time highs or were close to those levels..

What factors contributed to the Fund's performance?
During the two-month period ended June 30, 2006, Fund performance was driven by several factors. From a sector perspective, strong stock selection in the consumer discretionary and industrials sectors benefited the Fund's results. From a geographic standpoint, our underweight position and stock selection in Japan, relative to the MSCI EAFE Index, was the largest positive contributor to performance. Conversely, the Fund's underweight position and stock selection in the materials sector hindered relative results. Stock selection and an underweight position in the health care sector, the MSCI EAFE Index's strongest-performing sector for the period, also hurt relative performance.

During the third quarter, the Fund benefited from an overweight position in strong-performing telecommunications services. Conversely, the Fund's exposure to weak South Korean and Japanese banks hurt performance. In the energy market, the price per barrel of oil rose to a new record of just under $80 in July, due to the ongoing tight supply-demand relationship and concerns about oil supply disruptions. Oil prices retreated to end the third quarter just below $63 per barrel on the easing of geopolitical concerns and the lack of hurricane threats in the Gulf of Mexico. We held a marginally underweight position in the energy sector at quarter-end, and the reversal in the performance of energy-related stocks emerged as another driver of relative returns during the quarter. Cyclical sectors performed well during the fourth quarter, while investors rotated out of defensive stocks, with health care being the hardest hit. Market conditions were driv en by a strong earnings season in the U.S., coupled with favorable economic data. The best-performing sectors during the quarter were telecommunications, materials and utilities. The weakest-performing sectors were health care, information technology and consumer staples. From a geographic perspective, the strongest-performing developed markets in the fourth quarter were Norway, Singapore, New Zealand and Malaysia. Weakest performers within developed markets included Canada, the United States and Japan. The Fund benefited from a significant overweight in telecommunications services during the fourth quarter. Other positive contributions to the Fund's performance came from the Fund's holdings

MML Foreign Fund – Portfolio Manager Report (Continued)

in the industrials, transportation, and financials sectors – and an underweight position in Japan. By contrast, lagging stock selection in the media sector, its allocation to South Korea, and an underweight position in strong-performing metals and mining stocks hindered Fund performance.

What is your outlook?
We believe that over the long term, a bottom-up, value-based contrarian approach produces superior returns. We remain positively disposed towards the international markets from a longer-term perspective, but are aware of the near-term issues facing the markets. By purchasing out-of-favor securities trading at valuations that we believe are low, and by maintaining a diversified portfolio, we seek to reduce volatility while positioning the Fund for potentially strong, long-term performance.

MML Foreign Fund – Portfolio Manager Report (Continued)

*MML Foreign Fund* *Largest Country Weightings (12/31/06)*
United Kingdom	25.1	%
France	8.9	%
Japan	7.4	%
Germany	9.5	%
Spain	4.9	%
South Korea	4.7	%
Italy	3.5	%
Norway	2.6	%
Switzerland	2.5	%
Singapore	2.4	%
Taiwan	2.4	%
Netherlands	3.5	%
United States	2.1	%
Finland	2.0	%
Hong Kong	2.0	%
Bermuda	1.9	%
Sweden	1.6	%
Australia	1.5	%
Brazil	1.4	%
China	1.1	%
Mexico	1.0	%
Canada	0.8	%
Russia	0.8	%
Denmark	0.6	%
South Africa	0.4	%
Short-Term Investments and Other Assets and Liabilities	5.4	%
	100.0	%

MML Foreign Fund
Largest Stock Holdings (12/31/06)

Deutsche Post AG

E.ON AG

France Telecom SA

GlaxoSmithKline PLC

ING Groep NV

Royal Dutch Shell PLC

Siemens AG

Telefonica SA Sponsored ADR (Spain)

Telenor ASA

Vodafone Group PLC, Sponsored ADR (United Kingdom)

MML Foreign Fund – Portfolio Manager Report (Continued)

Growth of a $10,000 Investment

Hypothetical Investments in MML Foreign Fund and the MSCI EAFE Index.

MML Series Investment Fund
Total Returns

	_{Since Inception}_{5/1/06 - 12/31/06}
MML Foreign Fund		11.26	%
MSCI EAFE Index		10.23	%

GROWTH OF $10,000 INVESTMENT SINCE INCEPTION

Investors should note that the Fund is a professionally managed mutual fund, while the MSCI EAFE Index is unmanaged, does not incur expenses, and cannot be purchased directly by investors. Investors should read the Fund's prospectus with regard to the Fund's investment objective, risks and charges and expenses in conjunction with these financial statements. The Fund's return reflects changes in the net asset value per share without the deduction of any product charges. The inclusion of these charges would have reduced the performance shown here.

MML Asset Allocation Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 68.6%
COMMON STOCK — 68.6%
Advertising — 0.5%
Getty Images, Inc.(a)(b)		22,000	$	942,040
Omnicom Group, Inc.		4,500		470,430
				1,412,470
Aerospace & Defense — 0.8%
United Technologies Corp.		36,300		2,269,476
Apparel, Textiles & Shoes — 0.5%
Hanesbrands, Inc.(a)		40,150		948,343
Urban Outfitters, Inc.(a) (b)		12,600		290,178
				1,238,521
Automotive & Parts — 0.2%
Ford Motor Co.(b)		16,800		126,168
General Motors Corp.(b)		17,500		537,600
				663,768
Banking, Savings & Loans — 8.6%
Capital One Financial Corp.		8,800		676,016
Compass Bancshares, Inc.		4,800		286,320
Fannie Mae		26,100		1,550,079
Fifth Third Bancorp		23,000		941,390
Freddie Mac		17,600		1,195,040
Hudson City Bancorp, Inc.		81,300		1,128,444
JP Morgan Chase & Co.		65,700		3,173,310
SLM Corp.		92,600		4,516,102
Wachovia Corp.		63,526		3,617,806
Washington Mutual, Inc.		74,600		3,393,554
Wells Fargo & Co.		70,800		2,517,648
				22,995,709
Beverages — 1.4%
Anheuser-Busch Cos., Inc.		8,800		432,960
The Coca-Cola Co.		18,000		868,500
PepsiCo, Inc.		37,000		2,314,350
				3,615,810
Broadcasting, Publishing & Printing — 1.3%
Cablevision Systems Corp. Cl. A		16,600		472,768
CBS Corp. Cl. B		20,700		645,426
Clear Channel Communications, Inc.		28,700		1,019,998
Comcast Corp. Cl. A(a)		11,100		469,863
Idearc, Inc.(a)		1,520		43,548
Time Warner, Inc.		25,700		559,746
Viacom, Inc. Cl. B(a)		9,500		389,785
				3,601,134

	Number of Shares		Market Value
Chemicals — 1.6%
Air Products & Chemicals, Inc.		4,900	$	344,372
Dow Chemical Co.		25,000		998,500
Du Pont (E.I.) de Nemours & Co.		7,700		375,067
Huntsman Corp.(a)		45,400		861,238
Methanex Corp.		16,800		459,816
Nova Chemicals Corp.(b)		12,000		334,800
Potash Corp. of Saskatchewan		3,500		502,180
Rohm & Haas Co.		6,800		347,616
				4,223,589
Commercial Services — 1.9%
eBay, Inc.(a)		54,800		1,647,836
Fluor Corp.		31,300		2,555,645
Paychex, Inc.		8,400		332,136
Siemens AG Sponsored ADR (Germany)(b)		5,000		492,750
				5,028,367
Communications — 0.5%
American Tower Corp. Cl. A(a)		10,400		387,712
Motorola, Inc.		25,100		516,056
Qualcomm, Inc.		8,800		332,552
				1,236,320
Computer Integrated Systems Design — 0.4%
Sun Microsystems, Inc.(a)		217,800		1,180,476
Computer Programming Services — 0.5%
SAP AG Sponsored ADR (Germany)(b)		27,000		1,433,700
Computers & Information — 3.8%
Cisco Systems, Inc.(a)		158,400		4,329,072
Dell, Inc.(a)		47,200		1,184,248
International Business Machines Corp.		4,200		408,030
Jabil Circuit, Inc.		30,500		748,775
SanDisk Corp.(a) (b)		48,600		2,091,258
Seagate Technology		50,100		1,327,650
				10,089,033
Computers & Office Equipment — 0.2%
Hewlett-Packard Co.		10,400		428,376
Cosmetics & Personal Care — 0.4%
Avon Products, Inc.		30,500		1,007,720
Data Processing & Preparation — 0.5%
Affiliated Computer Services, Inc. Cl. A(a) (b)		18,400		898,656

	Number of Shares		Market Value
Automatic Data Processing, Inc.		7,700	$	379,225
				1,277,881
Electric Utilities — 0.9%
AES Corp.(a)		40,800		899,232
CMS Energy Corp.(a)		32,300		539,410
Exelon Corp.		4,300		266,127
MDU Resources Group, Inc.		13,950		357,678
NiSource, Inc.		17,900		431,390
				2,493,837
Electrical Equipment & Electronics — 6.9%
Altera Corp.(a)		90,000		1,771,200
ASML Holding NV(a)		15,900		391,617
Emerson Electric Co.		14,600		643,422
Fairchild Semiconductor International, Inc.(a)		26,400		443,784
Flextronics International Ltd.(a)		126,500		1,452,220
General Electric Co.		131,800		4,904,278
Intel Corp.		104,300		2,112,075
International Rectifier Corp.(a)		29,700		1,144,341
Johnson Controls, Inc.		6,700		575,664
KLA-Tencor Corp.		46,500		2,313,375
Linear Technology Corp.		17,500		530,600
Qimonda AG ADR (Germany)(a)		18,200		318,682
Silicon Laboratories, Inc.(a) (b)		10,900		377,685
Xilinx, Inc.(b)		56,900		1,354,789
				18,333,732
Energy — 5.1%
Anadarko Petroleum Corp.		8,400		365,568
Arch Coal, Inc.		21,700		651,651
BJ Services Co.		30,600		897,192
Chevron Corp.		13,000		955,890
EOG Resources, Inc.		6,000		374,700
Exxon Mobil Corp.		17,200		1,318,036
Halliburton Co.		19,400		602,370
Kinder Morgan, Inc.		5,300		560,475
Royal Dutch Shell PLC Sponsored ADR (United Kingdom)		46,200		3,270,498
Schlumberger Ltd.		45,200		2,854,832
Transocean, Inc.(a)		4,100		331,649
Weatherford International Ltd.		31,300		1,308,027
				13,490,888

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Entertainment & Leisure — 0.7%
The Walt Disney Co.		52,200	$	1,788,894
Financial Services — 1.2%
AmeriCredit Corp.(a) (b)		17,000		427,890
Berkshire Hathaway, Inc. Cl. A(a)		11		1,209,890
Douglas Emmett, Inc. REIT		10,500		279,195
The Goldman Sachs Group, Inc.		2,300		458,505
IndyMac Bancorp, Inc.(b)		9,300		419,988
Merrill Lynch & Co., Inc.		4,000		372,400
				3,167,868
Foods — 1.9%
Campbell Soup Co.		19,700		766,133
Heinz (H. J.) Co.		8,000		360,080
Kraft Foods, Inc. Cl. A(b)		28,600		1,021,020
Sara Lee Corp.		105,600		1,798,368
Sysco Corp.		28,000		1,029,280
				4,974,881
Forest Products & Paper — 0.2%
International Paper Co.		15,400		525,140
Healthcare — 1.0%
DaVita, Inc.(a)		14,700		836,136
Lincare Holdings, Inc.(a)		15,400		613,536
UnitedHealth Group, Inc.		20,700		1,112,211
				2,561,883
Home Construction, Furnishings & Appliances — 0.3%
Leggett & Platt, Inc.		21,200		506,680
Lennar Corp. Cl. A		3,900		204,594
				711,274
Household Products — 0.6%
Fortune Brands, Inc.(b)		4,900		418,411
Jarden Corp.(a) (b)		9,400		327,026
Unilever NV NY Shares (Netherlands)		33,000		899,250
				1,644,687
Industrial – Diversified — 1.7%
Cooper Industries Ltd. Cl. A		7,300		660,139
Corning, Inc.(a)		37,100		694,141
Danaher Corp.		21,200		1,535,728
Illinois Tool Works, Inc.		33,400		1,542,746
				4,432,754
Information Retrieval Services — 1.7%
Google, Inc. Cl. A(a)		8,200		3,775,936
Yahoo!, Inc.(a)		33,000		842,820
				4,618,756

	Number of Shares		Market Value
Insurance — 2.4%
AFLAC, Inc.		7,800	$	358,800
American International Group, Inc.		21,000		1,504,860
Chubb Corp.		4,900		259,259
Marsh & McLennan Cos., Inc.		48,700		1,493,142
RenaissanceRe Holdings Ltd.		8,000		480,000
WellPoint, Inc.(a)		19,200		1,510,848
XL Capital Ltd. Cl. A		12,300		885,846
				6,492,755
Lodging — 0.8%
Host Hotels & Resorts, Inc. REIT		8,700		213,585
Las Vegas Sands Corp.(a)		15,300		1,369,044
Starwood Hotels & Resorts Worldwide, Inc.		7,200		450,000
				2,032,629
Machinery & Components — 0.6%
Baker Hughes, Inc.		22,600		1,687,316
Manufacturing — 1.4%
American Standard Cos., Inc.		27,700		1,270,045
Applied Materials, Inc.		132,800		2,450,160
				3,720,205
Medical Supplies — 2.1%
Agilent Technologies, Inc.(a)		8,800		306,680
Allergan, Inc.		19,900		2,382,826
Baxter International, Inc.		38,600		1,790,654
Medtronic, Inc.		21,300		1,139,763
				5,619,923
Metals & Mining — 0.9%
Alcoa, Inc.		34,900		1,047,349
Barrick Gold Corp.		22,500		690,750
Newmont Mining Corp.		11,900		537,285
				2,275,384
Pharmaceuticals — 5.1%
Amgen, Inc.(a)		5,000		341,550
AstraZeneca PLC Sponsored ADR (United Kingdom)		69,300		3,711,015
Endo Pharmaceuticals Holdings, Inc.(a)		10,700		295,106
Forest Laboratories, Inc.(a)		97,300		4,923,380
ImClone Systems, Inc.(a) (b)		30,900		826,884
McKesson Corp.		9,100		461,370
Medco Health Solutions, Inc.(a)		6,200		331,328

	Number of Shares		Market Value
Millennium Pharmaceuticals, Inc.(a) (b)		55,800	$	608,220
Pfizer, Inc.		15,300		396,270
Sepracor, Inc.(a)		10,900		671,222
Teva Pharmaceutical Sponsored ADR (Israel)		33,700		1,047,396
				13,613,741
Prepackaged Software — 2.5%
Cerner Corp.(a) (b)		8,100		368,550
Compuware Corp.(a)		44,200		368,186
Microsoft Corp.		194,800		5,816,728
				6,553,464
Real Estate — 0.1%
General Growth Properties, Inc. REIT		7,100		370,833
Restaurants — 0.2%
The Cheesecake Factory(a)		9,600		236,160
McDonald's Corp.		9,900		438,867
				675,027
Retail — 3.5%
Best Buy Co., Inc.		14,700		723,093
Dollar Tree Stores, Inc.(a)		23,800		716,380
The Home Depot, Inc.		24,600		987,936
Lowe's Companies, Inc.(b)		110,800		3,451,420
Target Corp.		59,000		3,365,950
				9,244,779
Telephone Utilities — 1.3%
AT&T, Inc.		25,000		893,750
Qwest Communications International, Inc.(a)		51,200		428,544
Sprint Nextel Corp.		63,600		1,201,404
Verizon Communications, Inc.		22,400		834,176
				3,357,874
Tobacco — 1.2%
Altria Group, Inc.		37,700		3,235,414
Transportation — 1.2%
Carnival Corp.(b)		6,200		304,110
FedEx Corp.		3,200		347,584
United Parcel Service, Inc. Cl. B		35,700		2,676,786
				3,328,480
TOTAL COMMON STOCK (Cost $176,550,561)				182,654,768
TOTAL EQUITIES (Cost $176,550,561)				182,654,768

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
BONDS & NOTES — 29.2%
ASSET BACKED SECURITIES — 1.4%
Financial Services
Advanta Business Card Master Trust, Series 2005-A2, Class A2 5.480% 05/20/2013	$	500,000	$	499,609
CPS Auto Trust, Series 2006-C, Class A4(c) 5.140% 06/15/2013		349,999		350,480
Crown Castle Towers LLC, Series 2006-1A, Class E(c) 6.065% 11/15/2036		290,000		289,642
Delta Air Lines, Inc., Series 2002-1, Class G2 6.417% 07/02/2012		125,000		126,563
Drive Auto Receivables Trust, Series 2006-2, Class A3(c) 5.330% 04/15/2014		175,000		176,039
MBNA Credit Card Master Note Trust, Series 2002-1C, Class C 6.800% 07/15/2014		1,000,000		1,062,813
Prestige Auto Receivables Trust, Series 2005-1A, Class A2.(c) 4.370% 06/15/2012		1,000,000		990,313
Rental Car Finance Corp., Series 2005-1A, Class A2(c) 4.590% 06/25/2011		250,000		245,977
TOTAL ASSET BACKED SECURITIES (Cost $3,720,853)				3,741,436
CORPORATE DEBT — 9.1%
Aerospace & Defense — 0.0%
Raytheon Co. 6.550% 03/15/2010		45,000		46,624
Automotive & Parts — 0.6%
DaimlerChrysler NA Holding Corp. 4.750% 01/15/2008		330,000		326,991
Ford Motor Co. 4.250% 12/15/2036		442,000		472,388
General Motors Acceptance Corp. 7.000% 02/01/2012		350,000		361,088
General Motors Corp.(b) 7.125% 07/15/2013		400,000		377,000
				1,537,467

	Principal Amount		Market Value
Banking, Savings & Loans — 1.6%
American Express Co. 6.800% 09/01/2066	$	60,000	$	63,980
American General Finance Corp. 5.625% 08/17/2011		130,000		131,015
Banco Mercantil Del Nort(c) 6.862% 10/13/2021		160,000		161,723
Capital One Bank 4.250% 12/01/2008		340,000		333,289
Chuo Mitsui Trust & Banking Co. Ltd. (The)(c) 5.506% 12/15/2049		180,000		171,925
CIT Group, Inc. 5.000% 11/24/2008		490,000		487,575
Corp. Andina de Fomento 6.875% 03/15/2012		160,000		170,148
Ford Motor Credit Co. 8.625% 11/01/2010		200,000		205,871
General Electric Capital Corp. 5.450% 01/15/2013		125,000		126,196
HSBK Europe BV(c) 7.750% 05/13/2013		100,000		105,500
Independence Community Bank Corp. 4.900% 09/23/2010		170,000		166,020
JP Morgan Chase & Co. 5.350% 03/01/2007		50,000		49,990
JSG Funding PLC 7.750% 04/01/2015		300,000		288,000
PCCW Capital Ltd.(c) 8.000% 11/15/2011		160,000		176,100
Pemex Project Funding Master Trust 6.625% 06/15/2035		170,000		173,910
PNC Preferred Funding Trust(b) (c) 6.517% 03/15/2049		300,000		305,511
Private Export Fund 5.000% 12/15/2016		250,000		249,615
Residential Capital Corp. 6.375% 06/30/2010		80,000		80,931
Santander Issuances(c) 5.805% 06/20/2016		200,000		201,717
Unicredito Luxem Finance(c) 5.584% 01/13/2017		200,000		201,336
Washington Mutual, Inc. 5.250% 09/15/2017		75,000		72,318
Wells Fargo & Co. 3.500% 04/04/2008		50,000		48,965

	Principal Amount		Market Value
Xl Capital Ltd. 6.375% 11/15/2024	$	70,000	$	72,769
Zions Bancorp 5.500% 11/16/2015		245,000		241,038
				4,285,442
Broadcasting, Publishing & Printing — 0.5%
Charter Communications Operating LLC/Charter Communications Operating Capital Corp.(c) 8.375% 04/30/2014		425,000		443,594
Comcast Corp. 5.875% 02/15/2018		60,000		59,355
Comcast Corp. 6.450% 03/15/2037		55,000		55,030
Comcast Corp. 6.500% 11/15/2035		100,000		100,706
Cox Communications, Inc. 7.750% 11/01/2010		50,000		53,774
RH Donnelley Corp. 6.875% 01/15/2013		350,000		335,563
Thomson Corp. 5.500% 08/15/2035		165,000		150,117
Young Broadcasting, Inc. 10.000% 03/01/2011		175,000		166,250
				1,364,389
Building Materials & Construction — 0.2%
Home Depot Inc. 5.490% 12/16/2009		340,000		339,975
USG Corp.(c) 6.300% 11/15/2016		110,000		109,036
				449,011
Chemicals — 0.0%
Vale Overseas Ltd. 6.250% 01/23/2017		110,000		110,500
Commercial Services — 0.3%
Allied Waste North America, Inc. 6.125% 02/15/2014		375,000		356,250
Allied Waste North America, Inc. 9.250% 09/01/2012		300,000		318,750
Valor Telecommunications Enterprises LLC/ Finance Corp. 7.750% 02/15/2015		150,000		161,438
				836,438
Communications — 0.0%
Intelsat Subsidiary Holding Co. Ltd. 8.250% 01/15/2013		75,000		76,125

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Viacom, Inc. 6.875% 04/30/2036	$	30,000	$	29,660
				105,785
Electric Utilities — 0.7%
AES Corp. (The) 9.375% 09/15/2010		650,000		706,063
Ameren Union Electric 5.400% 02/01/2016		100,000		97,287
Appalachian Power Co. 5.550% 04/01/2011		75,000		75,094
Commonwealth Edison 5.900% 03/15/2036		75,000		73,008
Energy East Corp. 6.750% 07/15/2036		125,000		131,887
Midamerican Energy Holdings 6.125% 04/01/2036		150,000		151,208
National Grid PLC 6.300% 08/01/2016		110,000		113,925
Pacific Gas & Electric 4.200% 03/01/2011		50,000		47,873
Puget Sound Energy, Inc. 6.274% 03/15/2037		100,000		101,474
Scottish Power PLC 5.375% 03/15/2015		125,000		123,338
Taqa Abu Dhabi National(c) 5.875% 10/27/2016		100,000		100,709
Taqa Abu Dhabi National(c) 6.500% 10/27/2036		130,000		134,086
				1,855,952
Electrical Equipment & Electronics — 0.0%
Cisco Systems, Inc. 5.250% 02/22/2011		50,000		50,125
Energy — 0.8%
Anadarko Petroleum Corp. 6.450% 09/15/2036		160,000		161,679
El Paso Corp. 7.750% 06/15/2010		150,000		158,625
El Paso Corp. 7.875% 06/15/2012		200,000		214,500
Energy Transfer Partners LP 5.950% 02/01/2015		170,000		170,964
Energy Transfer Partners LP 6.625% 10/15/2036		120,000		123,560
Enterprise Products Operating LP 5.000% 03/01/2015		45,000		42,431

	Principal Amount		Market Value
Enterprise Products Operating LP 6.875% 03/01/2033	$	100,000	$	104,416
Enterprise Products Operating LP, Series B 5.600% 10/15/2014		100,000		98,213
Gulfstream Natural Gas System LLC(c) 6.190% 11/01/2025		250,000		251,218
Kinder Morgan Energy Partners LP 5.125% 11/15/2014		65,000		61,906
Petrobras International Finance Co. 6.125% 10/06/2016		160,000		161,600
The Williams Companies, Inc. 8.125% 03/15/2012		300,000		324,750
XTO Energy, Inc. 6.100% 04/01/2036		125,000		121,990
				1,995,852
Entertainment & Leisure — 0.1%
News America, Inc. 6.400% 12/15/2035		90,000		89,409
Time Warner, Inc. 7.625% 04/15/2031		160,000		178,746
				268,155
Financial Services — 1.5%
Brandywine Operating Partnership LP REIT 6.000% 04/01/2016		220,000		223,833
Capital One Financial Corp. 4.800% 02/21/2012		170,000		165,293
Developers Diversified Realty Corp. REIT 5.000% 05/03/2010		150,000		147,947
Gaz Capital SA(c) 6.212% 11/22/2016		150,000		151,050
Goldman Sachs Group, Inc. 5.250% 04/01/2013		200,000		198,695
Hospitality Properties Trust REIT 6.300% 06/15/2016		85,000		86,985
HVB Funding Trust III(c) 9.000% 10/22/2031		130,000		169,059
JP Morgan Chase Capital XX 6.550% 09/29/2036		30,000		30,978
JP Morgan Chase Capital XVIII 6.950% 08/17/2036		160,000		173,068

	Principal Amount		Market Value
Kimco Realty Corp. REIT 4.820% 06/01/2014	$	100,000	$	95,387
Lehman Brothers Holdings, Inc. 5.500% 04/04/2016		475,000		474,935
Lehman Brothers Holdings, Inc. 5.750% 04/25/2011		520,000		530,207
Mangrove Bay(c) 6.102% 07/15/2033		150,000		146,316
Mizuho Capital Inv 1 Ltd.(c) 6.686% 06/30/2049		80,000		80,714
MUFG Capital Finance 1 Ltd. 6.346% 07/29/2049		125,000		126,861
Prologis REIT 5.250% 11/15/2010		170,000		169,027
Prologis REIT 5.625% 11/15/2015		100,000		99,507
Qwest Capital Funding, Inc.(b) 7.250% 02/15/2011		150,000		153,188
Residential Capital Corp. 6.500% 04/17/2013		150,000		152,015
Simon Property Group, LP REIT 5.875% 03/01/2017		100,000		101,867
SMFG Preferred Capital(c) 6.078% 07/25/2049		400,000		400,000
Twin Reefs(c) 6.350% 01/10/2049		200,000		200,217
				4,077,149
Food Retailers — 0.2%
Albertson's Inc. 7.250% 05/01/2013		525,000		533,999
Foods — 0.1%
Kellogg Co. 6.600% 04/01/2011		160,000		167,792
SuperValu, Inc. 7.500% 05/15/2012		150,000		154,606
				322,398
Forest Products & Paper — 0.2%
Graphic Packaging International Corp. 8.500% 08/15/2011		190,000		196,650
International Paper Co. 5.850% 10/30/2012		20,000		20,409
Jefferson Smurfit Corp. 7.500% 06/01/2013		300,000		282,000
				499,059

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Healthcare — 0.1%
Tenet Healthcare Corp. 9.875% 07/01/2014	$	125,000	$	127,188
Home Construction, Furnishings & Appliances — 0.2%
C10 Capital Ltd.(c) 6.722% 12/31/2049		300,000		300,270
William Lyon Homes, Inc. 10.750% 04/01/2013		150,000		142,875
				443,145
Industrial – Diversified — 0.0%
Tyco International Group SA 6.875% 01/15/2029		45,000		51,155
Tyco International Group SA 7.000% 06/15/2028		25,000		28,687
				79,842
Insurance — 0.9%
Ace Ina Holdings 6.700% 05/15/2036		70,000		75,296
Allstate Financial Global Funding(c) 4.250% 09/10/2008		680,000		669,093
Assurant Inc. 6.750% 02/15/2034		70,000		75,210
CNA Financial Corp. 7.250% 11/15/2023		150,000		162,631
International Lease Finance Corp. 4.750% 07/01/2009		125,000		123,473
International Lease Finance Corp. 4.750% 01/13/2012		350,000		340,307
Liberty Mutual Group, Inc.(c) 6.500% 03/15/2035		215,000		209,555
Liberty Mutual Group, Inc.(c) 7.500% 08/15/2036		95,000		103,937
Lincoln National Corp. 6.200% 12/15/2011		160,000		165,447
Lincoln National Corp. 7.000% 05/17/2066		100,000		105,989
North Front(c) 5.810% 12/15/2024		250,000		246,125
St. Paul Travelers 6.250% 06/20/2016		50,000		52,498
				2,329,561
Lodging — 0.3%
Boyd Gaming Corp. 6.750% 04/15/2014		650,000		648,375

	Principal Amount		Market Value
Wyndham Worldwide(c) 6.000% 12/01/2016	$	80,000	$	78,593
				726,968
Medical Supplies — 0.0%
Boston Scientific 7.000% 11/15/2035		40,000		39,848
Pharmaceuticals — 0.0%
Cardinal Health, Inc.(c) 5.800% 10/15/2016		100,000		99,765
Real Estate — 0.1%
Equity Office Property Notes 7.875% 07/15/2031		30,000		35,355
Realogy Corp.(c) 6.074% 10/20/2009		230,000		230,073
				265,428
Retail — 0.1%
CVS Corp.(c) 5.298% 01/11/2027		31,834		30,660
CVS Lease Pass Through(c) 6.036% 12/10/2028		105,000		104,565
Federated Retail Holding 5.900% 12/01/2016		100,000		99,845
				235,070
Telephone Utilities — 0.6%
AT&T, Inc. 6.800% 05/15/2036		150,000		159,439
Dobson Cellular Systems 9.875% 11/01/2012		150,000		163,500
New Cingular Wireless Services, Inc. 8.750% 03/01/2031		25,000		32,489
Nextel Communications, Inc., Series E 6.875% 10/31/2013		280,000		282,892
Qwest Communications International, Inc. 7.250% 02/15/2011		275,000		281,188
SBC Communications, Inc. 5.625% 06/15/2016		50,000		49,770
US Unwired, Inc. 10.000% 06/15/2012		320,000		352,000
Verizon New York Inc. Cl. A 6.875% 04/01/2012		150,000		155,508
				1,476,786
TOTAL CORPORATE DEBT (Cost $23,830,018)				24,161,946

	Principal Amount		Market Value
NON-U.S. GOVERNMENT AGENCY OBLIGATIONS — 3.7%
Financial Services
Collateralized Mortgage Obligations
Bear Stearns Alternative Loan Trust, Series 2006-6, Class 2A1 5.977% 11/25/2036	$	489,216	$	492,392
Countrywide Home Loan Mortgage Pass Through Trust, Series 2006-HYB5, Class 3A1B 5.961% 09/20/2036		44,915		45,152
CS First Boston Mortgage Securities Corp., Series 2004-C5, Class A3 4.499% 11/15/2037		180,000		174,036
CS First Boston Mortgage Securities Corp., Series 2005-7, Class 3A1 5.000% 08/25/2020		49,103		47,952
CS First Boston Mortgage Securities Corp., Series 2005-C1, Class A3 4.813% 02/15/2038		125,000		122,406
CSAB Mortgage Backed Trust, Series 2006-2, Class A6A 5.720% 09/25/2036		350,000		346,687
GMAC Commercial Mortgage Securities, Inc., Series 2001-C1, Class A1 5.988% 04/15/2034		115,522		115,607
GMAC Commercial Mortgage Securities, Inc., Series 2001-C1, Class A2 6.465% 04/15/2034		250,000		260,235
Greenwich Capital Commercial Funding Corp., Series 2002-C1, Class A2 4.112% 01/11/2017		825,263		804,105
Indymac Index Mortgage Loan Trust, Series 2005-AR35, Class 2A1 6.004% 02/25/2036		3,531,270		3,541,063
J.P. Morgan Alternative Loan Trust, Series 2006-S3, Class A6 6.120% 08/25/2036		375,000		377,349

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
LB-UBS Commercial Mortgage Trust, Series 2002-C1, Class A4 6.462% 03/15/2031	$	600,000	$	630,934
MASTR Alternative Loans Trust, Series 2004-5, Class 5A1 4.750% 06/25/2019		298,475		288,984
Merrill Lynch Mortgage Trust, Series 2005-LC1, Class A2 5.202% 01/12/2044		125,000		124,724
Residential Asset Securitization Trust, Series 2004-A6, Class A1 5.000% 08/25/2019		658,800		643,776
Washington Mutual, Inc., Series 2003-S6, Class 2A3 4.750% 07/25/2018		225,618		218,377
Washington Mutual, Inc., Series 2003-S7, Class A1 4.500% 08/25/2018		79,624		76,362
Washington Mutual, Inc., Series 2003-S2, Class A1 5.000% 05/25/2018		321,173		313,776
Wells Fargo Mortgage Backed Securities Trust, Series 2006-AR15, Class A1 5.682% 10/25/2036		905,417		904,547
Wells Fargo Mortgage Backed Securities Trust, Series 2003-16, Class 2A1 4.500% 12/25/2018		74,613		71,553
Wells Fargo Mortgage Backed Securities Trust, Series 2003-3, Class 2A1 5.250% 04/25/2033		117,734		116,023
TOTAL NON-U.S. GOVERNMENT AGENCY OBLIGATIONS (Cost $9,659,118)				9,716,040
SOVEREIGN DEBT OBLIGATIONS — 2.2%
Bundesrepub Deutschland EUR(d) 4.250% 07/04/2014		560,000		751,195
Bundesrepub Deutschland EUR(d) 4.500% 07/04/2009		100,000		133,510

	Principal Amount		Market Value
Canadian Government CAD(d) 4.500% 06/01/2015	$	70,000	$	62,187
Dominican Republic 9.040% 01/23/2018		81,973		93,860
France Government Bond EUR(d) 4.750% 04/25/2035		50,000		72,627
Japanese Government Bond JPY(d) 1.100% 03/21/2011		40,000,000		336,096
Japanese Government Bond JPY(d) 1.500% 09/20/2014		50,000,000		419,600
Republic of Argentina 0.649% 12/15/2035		2,090,000		80,674
Republic of Argentina 0.006% 12/15/2035		40,000		5,320
Republic of Argentina 5.830% 12/31/2033		876,316		326,603
Republic of Argentina ARS(d) 5.830% 12/31/2033		485,256		180,116
Republic of Brazil(b) 11.000% 08/17/2040		175,000		231,875
Republic of Colombia 7.375% 09/18/2037		300,000		322,050
Republic of Colombia 10.000% 01/23/2012		100,000		117,500
Republic of Colombia COP(d) 12.000% 10/22/2015		340,000,000		179,977
Republic of Egypt 4.450% 09/15/2015		375,000		362,366
Republic of Germany, EUR(d) 3.750% 07/04/2013		550,000		716,267
Republic of Poland PLN(d) 5.000% 10/24/2013		200,000		68,243
Republic of Turkey TRY(d) 0.000% 07/16/2008		640,000		336,100
Sweden Government Bond SEK(d) 6.750% 05/05/2014		1,060,000		182,708
United Kingdom GBP(d) 6.000% 12/07/2028		35,000		83,877
United Kingdom Treasury GBP(d) 5.000% 09/07/2014		120,000		237,754
United Mexican States 6.750% 09/27/2034		160,000		172,800

	Principal Amount		Market Value
United Mexican States MXN(d) 9.500% 12/18/2014	$	1,300,000	$	134,552
United Mexican States MXN(d) 10.000% 12/05/2024		1,510,000		172,385
TOTAL SOVEREIGN DEBT OBLIGATIONS (Cost $5,603,346)				5,780,242
U.S. GOVERNMENT AGENCY OBLIGATIONS — 10.0%
Federal Home Loan Bank — 0.6%
Federal Home Loan Bank 4.625% 11/21/2008		325,000		322,448
Federal Home Loan Bank 5.125% 08/14/2013		200,000		201,240
Federal Home Loan Bank 5.625% 06/13/2016		490,000		504,496
Federal Home Loan Bank 5.750% 06/27/2016		525,000		545,657
				1,573,841
Federal Home Loan Mortgage Corporation (FHLMC) — 1.3%
Collateralized Mortgage Obligations — 0.0%
FHLMC, Series 3233, Class PA 6.000% 10/15/2036		123,585		123,219
Pass-Through Securities — 1.3%
FHLMC 3.625% 09/15/2008		75,000		73,259
FHLMC 4.500% 01/15/2014		335,000		325,754
FHLMC 5.125% 04/18/2011		100,000		100,593
FHLMC 5.250% 07/18/2011 – 04/18/2016		2,435,000		2,468,052
FHLMC 6.000% 12/01/2036		570,000		574,186
Total Pass-Through Securities				3,541,844
				3,665,063
Federal National Mortgage Association (FNMA) — 7.8%
Pass-Through Securities
FNMA 4.750% 01/02/2007 – 08/03/2007		1,800,000		1,795,912
FNMA 5.000% 12/01/2020		467,572		459,718

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
FNMA 5.250% 04/15/2007 – 08/01/2012	$	2,415,000	$	2,425,985
FNMA 5.500% 06/01/2021 – 03/01/2036		1,701,235		1,690,007
FNMA FRN 5.635% 05/01/2036		963,707		964,001
FNMA 6.000% 03/01/2036		9,660,446		9,726,862
FNMA 6.250% 05/15/2029		150,000		170,839
FNMA 6.500% 07/01/2035 – 05/01/2036		3,438,108		3,514,717
Total Pass-Through Securities				20,748,041
Government National Mortgage Association (GNMA) — 0.2%
Pass-Through Securities
GNMA 6.000% 06/20/2036		486,951		492,810
U.S. Government Agencies — 0.1%
Farmer Mac(c) 5.500% 07/15/2011		250,000		252,924
TOTAL U.S. GOVERNMENT AGENCY OBLIGATIONS (Cost $26,529,659)				26,732,679
U.S. TREASURY OBLIGATIONS — 2.8%
U.S. Treasury Bonds — 2.2%
U.S. Treasury Bond(b) 4.500% 02/15/2036		1,035,000		984,705
U.S. Treasury Bond 5.375% 02/15/2031		1,880,000		2,015,125
U.S. Treasury Bond 7.875% 02/15/2021		125,000		162,754
U.S. Treasury Bond(b) 8.875% 08/15/2017		2,065,000		2,763,228
				5,925,812
U.S. Treasury Notes — 0.6%
U.S. Treasury Inflation Index 3.375% 01/15/2012		574,230		599,577
U.S. Treasury Note 3.625% 07/15/2009		335,000		326,154
U.S. Treasury Note 3.625% 05/15/2013		230,000		216,775
U.S. Treasury Note(b) 4.875% 04/30/2011		300,000		301,969

	Principal Amount		Market Value
U.S. Treasury Note 5.625% 05/15/2008	$	75,000	$	75,697
				1,520,172
TOTAL U.S. TREASURY OBLIGATIONS (Cost $7,312,850)				7,445,984
TOTAL BONDS & NOTES (Cost $76,655,844)				77,578,327
TOTAL LONG TERM INVESTMENTS (Cost $253,206,405)				260,233,095
SHORT-TERM INVESTMENTS — 7.7%
Cash Equivalents — 5.9%(f)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007		387,412		387,412
American Beacon Money Market Fund(e)		133,796		133,796
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		566,218		566,218
Bank of America 5.270% 01/09/2007		298,009		298,009
Bank of America 5.310% 03/08/2007		298,009		298,009
Bank of America 5.320% 02/16/2007		89,403		89,403
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		178,806		178,806
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		596,019		596,019
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		387,412		387,412
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		149,005		149,005
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		298,009		298,009
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		298,009		298,009
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		89,403		89,403
BGI Institutional Money Market Fund(e)		281,528		281,528

	Principal Amount		Market Value
Calyon Eurodollar Time Deposit 5.290% 03/05/2007	$	447,014	$	447,014
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		149,005		149,005
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		149,005		149,005
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		548,337		548,337
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		447,014		447,014
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		149,005		149,005
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		298,009		298,009
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		298,009		298,009
Dreyfus Cash Management Plus Money Market Fund(e)		106,448		106,448
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		49,913		49,913
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		77,766		77,766
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		298,009		298,009
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		119,204		119,204
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		447,014		447,014
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		447,014		447,014
Freddie Mac Discount Note 5.231% 01/23/2007		118,600		118,600

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Asset Allocation Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007	$	149,005	$	149,005
Goldman Sachs Financial Square Prime Obligations Money Market Fund(e)		266,970		266,970
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		417,213		417,213
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		298,009		298,009
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		238,408		238,408
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		447,014		447,014
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		178,806		178,806
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		745,024		745,024
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		268,208		268,208
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		298,009		298,009
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		441,054		441,054
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		298,009		298,009
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		59,602		59,602
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		149,005		149,005
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		238,408		238,408
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		596,019		596,019

	Principal Amount		Market Value
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007	$	447,014	$	447,014
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		119,204		119,204
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,028,021		1,028,021
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		154,965		154,965
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		357,611		357,611
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		178,806		178,806
				15,574,788
Discount Notes — 0.5%
FNMA 5.065% 01/03/2007		425,000		424,882
FNMA 5.080% 01/03/2007		365,000		369,621
FNMA 5.100% 01/03/2007		200,000		199,942
FNMA 5.130% 01/03/2007		450,000		453,474
				1,447,919
Repurchase Agreement — 1.3%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(g)		3,530,271		3,530,271
TOTAL SHORT-TERM INVESTMENTS (Cost $20,552,978)				20,552,978
TOTAL INVESTMENTS — 105.5% (Cost $273,759,383)(h)				280,786,073
Other Assets/ (Liabilities) — (5.5%)				(14,573,666	)
NET ASSETS — 100.0%			$	266,212,407

Notes to Portfolio of Investments

ADR - American Depository Receipt

ARS - Argentine Peso

CAD - Canadian Dollar

COP - Colombian Peso

EUR - Euro

FRN - Floating Rate Note

GBP - British Pound

JPY - Japanese Yen

MXN - Mexican Peso

PLN - Polish Zloty

REIT - Real Estate Investment Trust

SEK - Swedish Kronor

TRY - New Turkish Lira

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(c) Securities exempt from registration under rule 144A of the Securities Act of 1933. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers. At December 31, 2006, these securities amounted to a value of $7,887,822 or 3.0% of net assets.

(d) The principal amount of the security is in foreign currency. The market value is in U.S. dollars.

(e) Amount represents shares owned of the fund.

(f) Represents investments of security lending collateral. (Note 2).

(g) Maturity value of $3,531,644. Collateralized by a U.S. Government Obligation with a rate of 5.50%, maturity date of 08/20/2031, and an aggregate market value, including accrued interest, of $3,706,785.

(h) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Equity Income Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 93.7%
COMMON STOCK — 93.7%
Aerospace & Defense — 2.0%
Honeywell International, Inc.		76,700	$	3,469,908
Raytheon Co.		42,800		2,259,840
				5,729,748
Automotive & Parts — 0.7%
Ford Motor Co.(a)		83,300		625,583
Genuine Parts Co.		32,300		1,531,989
				2,157,572
Banking, Savings & Loans — 8.3%
Bank of America Corp.		8,200		437,798
Fannie Mae		23,700		1,407,543
Fifth Third Bancorp		76,500		3,131,145
JP Morgan Chase & Co.		146,300		7,066,290
Mellon Financial Corp.		77,600		3,270,840
National City Corp.		36,800		1,345,408
State Street Corp.		37,300		2,515,512
SunTrust Banks, Inc.		27,300		2,305,485
U.S. Bancorp		49,000		1,773,310
Wells Fargo & Co.		29,600		1,052,576
				24,305,907
Beverages — 2.2%
Anheuser-Busch Cos., Inc.		65,700		3,232,440
The Coca-Cola Co.		68,600		3,309,950
				6,542,390
Broadcasting, Publishing & Printing — 5.7%
CBS Corp. Cl. B		69,200		2,157,656
Dow Jones & Co., Inc.(a)		53,900		2,048,200
Gannett Co., Inc.		13,300		804,118
Idearc, Inc.(b)		3,470		99,416
New York Times Co. Cl. A(a)		103,400		2,518,824
Time Warner, Inc.		180,700		3,935,646
Tribune Co.(a)		106,700		3,284,226
Viacom, Inc. Cl. B(b)		46,000		1,887,380
				16,735,466
Building Materials & Construction — 1.3%
Masco Corp.(a)		66,700		1,992,329
Vulcan Materials Co.(a)		20,700		1,860,309
				3,852,638
Chemicals — 2.0%
Chemtura Corp.		52,000		500,760

	Number of Shares		Market Value
Du Pont (E.I.) de Nemours & Co.		60,100	$	2,927,471
International Flavors & Fragrances, Inc.		50,700		2,492,412
				5,920,643
Commercial Services — 1.3%
Block (H&R), Inc.(a)		86,200		1,986,048
Waste Management, Inc.		50,700		1,864,239
				3,850,287
Communications — 1.4%
EchoStar Communications Corp. Cl. A(b)		19,200		730,176
Motorola, Inc.		61,100		1,256,216
Nokia Oyj Sponsored ADR (Finland)		107,800		2,190,496
				4,176,888
Computer Integrated Systems Design — 0.3%
Computer Sciences Corp.(b)		15,400		821,898
Computers & Information — 2.4%
Cisco Systems, Inc.(b)		49,800		1,361,034
Dell, Inc.(b)		85,600		2,147,704
International Business Machines Corp.		35,500		3,448,825
				6,957,563
Cosmetics & Personal Care — 2.6%
Avon Products, Inc.		65,200		2,154,208
Colgate-Palmolive Co.		54,000		3,522,960
Kimberly-Clark Corp.		26,000		1,766,700
				7,443,868
Electric Utilities — 4.7%
Duke Energy Corp.		86,100		2,859,381
Entergy Corp.		29,900		2,760,368
FirstEnergy Corp.		28,900		1,740,069
NiSource, Inc.		114,400		2,757,040
Pinnacle West Capital Corp.		22,800		1,154,592
Progress Energy, Inc.		41,100		2,017,188
Teco Energy, Inc.(a)		31,600		544,468
				13,833,106
Electrical Equipment & Electronics — 4.7%
Analog Devices, Inc.		68,000		2,235,160
General Electric Co.		226,300		8,420,623
Intel Corp.		60,700		1,229,175
Sony Corp.		39,600		1,699,468
				13,584,426

	Number of Shares		Market Value
Energy — 9.7%
Anadarko Petroleum Corp.		41,700	$	1,814,784
BP PLC, Sponsored ADR (United Kingdom)		34,300		2,301,530
Chevron Corp.		76,200		5,602,986
Exxon Mobil Corp.		73,900		5,662,957
Hess Corp.		60,000		2,974,200
Murphy Oil Corp.(a)		40,800		2,074,680
Royal Dutch Shell PLC Sponsored ADR (United Kingdom)		60,700		4,296,953
Schlumberger Ltd.		29,600		1,869,536
Xcel Energy, Inc.		76,800		1,771,008
				28,368,634
Entertainment & Leisure — 0.9%
The Walt Disney Co.		77,600		2,659,352
Financial Services — 3.5%
Citigroup, Inc.		58,800		3,275,160
Mercantile Bankshares Corp.		23,700		1,108,923
Morgan Stanley		38,800		3,159,484
The Charles Schwab Corp.		144,500		2,794,630
				10,338,197
Foods — 2.3%
Campbell Soup Co.		38,700		1,505,043
General Mills, Inc.		42,100		2,424,960
The Hershey Co.		3,300		164,340
McCormick & Co., Inc.		30,700		1,183,792
Sara Lee Corp.		43,000		732,290
Sysco Corp.		22,400		823,424
				6,833,849
Forest Products & Paper — 1.9%
International Paper Co.		119,200		4,064,720
MeadWestvaco Corp.		44,300		1,331,658
				5,396,378
Home Construction, Furnishings & Appliances — 0.5%
D.R. Horton, Inc.		51,900		1,374,831
Household Products — 1.6%
Fortune Brands, Inc.(a)		22,000		1,878,580
Newell Rubbermaid, Inc.		93,900		2,718,405
				4,596,985
Industrial – Diversified — 3.0%
3M Co.		32,000		2,493,760
Cooper Industries Ltd. Cl. A		14,900		1,347,407
Eaton Corp.		13,800		1,036,932

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Income Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Illinois Tool Works, Inc.		37,100	$	1,713,649
Tyco International Ltd.		71,000		2,158,400
				8,750,148
Insurance — 5.5%
American International Group, Inc.		51,000		3,654,660
Chubb Corp.		22,000		1,164,020
Lincoln National Corp.		39,300		2,609,520
Marsh & McLennan Cos., Inc.		143,800		4,408,908
St. Paul Travelers Cos.		47,400		2,544,906
UnumProvident Corp.		83,700		1,739,286
				16,121,300
Machinery & Components — 1.1%
Deere & Co.(a)		900		85,563
Ingersoll-Rand Co. Ltd. Cl. A		34,600		1,353,898
Pall Corp.		53,500		1,848,425
				3,287,886
Manufacturing — 0.9%
Avery Dennison Corp.		36,700		2,493,031
Medical Supplies — 1.0%
Baxter International, Inc.		37,100		1,721,069
Boston Scientific Corp.(b)		72,200		1,240,396
				2,961,465
Metals & Mining — 0.5%
Alcoa, Inc.		51,700		1,551,517
Pharmaceuticals — 8.2%
Abbott Laboratories		45,800		2,230,918
Bristol-Myers Squibb Co.		81,600		2,147,712
Eli Lilly & Co.		64,700		3,370,870
Johnson & Johnson		44,100		2,911,482
MedImmune, Inc.(a) (b)		38,900		1,259,193
Merck & Co., Inc.		96,700		4,216,120
Pfizer, Inc.		129,200		3,346,280
Schering-Plough Corp.(a)		53,900		1,274,196
Wyeth		59,800		3,045,016
				23,801,787
Photography Equipment/Supplies — 0.7%
Eastman Kodak Co.(a)		81,300		2,097,540
Prepackaged Software — 1.8%
Microsoft Corp.		171,600		5,123,976
Retail — 2.6%
Bed Bath & Beyond, Inc.(b)		36,700		1,398,270
The Home Depot, Inc.		69,600		2,795,136
RadioShack Corp.(a)		37,200		624,216
Wal-Mart Stores, Inc.		57,200		2,641,496
				7,459,118

	Number of Shares		Market Value
Telephone Utilities — 5.2%
Alltel Corp.		37,700	$	2,280,096
AT&T, Inc.		144,500		5,165,875
Qwest Communications International, Inc.(a) (b)		315,400		2,639,898
Sprint Nextel Corp.		111,600		2,108,124
Verizon Communications, Inc.		69,400		2,584,456
Windstream Corp.		36,084		513,114
				15,291,563
Tobacco — 0.5%
UST, Inc.		25,600		1,489,920
Toys, Games — 1.0%
Mattel, Inc.		126,100		2,857,426
Transportation — 1.7%
Norfolk Southern Corp.		27,300		1,372,917
Union Pacific Corp.		39,500		3,634,790
				5,007,707
TOTAL COMMON STOCK (Cost $250,516,788)				273,775,010
TOTAL EQUITIES (Cost $250,516,788)				273,775,010
	Principal Amount
BONDS & NOTES — 0.1%
CORPORATE DEBT — 0.1%
Automotive & Parts — 0.1%
Ford Motor Co. 4.250% 12/15/2036	$	366,000		391,162
TOTAL CORPORATE DEBT (Cost $366,000)				391,162
TOTAL BONDS & NOTES (Cost $366,000)				391,162
	Number of Shares
MUTUAL FUND — 0.9%
Financial Services — 0.9%
Government Reserve Investment Fund(b)		2,501,359		2,501,359
TOTAL MUTUAL FUND (Cost $2,501,359)				2,501,359
TOTAL LONG TERM INVESTMENTS (Cost $253,384,147)				276,667,531

	Principal Amount		Market Value
SHORT-TERM INVESTMENTS — 13.2%
Cash Equivalents — 8.1%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	592,920	$	592,920
American Beacon Money Market Fund(c)		204,769		204,769
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		866,577		866,577
Bank of America 5.270% 01/09/2007		456,093		456,093
Bank of America 5.310% 03/08/2007		456,093		456,093
Bank of America 5.320% 02/16/2007		136,828		136,828
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		273,656		273,656
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		912,186		912,186
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		592,921		592,921
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		228,047		228,047
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		456,093		456,093
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		456,093		456,093
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		136,828		136,828
BGI Institutional Money Market Fund(c)		430,868		430,868
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		684,140		684,140
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		228,047		228,047
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		228,047		228,047
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		839,211		839,211

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Equity Income Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007	$	684,140	$	684,140
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		228,047		228,047
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		456,093		456,093
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		456,093		456,093
Dreyfus Cash Management Plus Money Market Fund(c)		162,915		162,915
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		76,390		76,390
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		119,019		119,019
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		456,093		456,093
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		182,437		182,437
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		684,140		684,140
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		684,140		684,140
Freddie Mac Discount Note 5.231% 01/23/2007		181,513		181,513
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		228,047		228,047
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		408,588		408,588
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		638,530		638,530
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		456,093		456,093

	Principal Amount		Market Value
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007	$	364,875	$	364,875
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		684,140		684,140
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		273,656		273,656
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		1,140,233		1,140,233
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		410,484		410,484
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		456,093		456,093
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		675,018		675,018
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		456,093		456,093
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		91,219		91,219
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		228,047		228,047
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		364,875		364,875
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		912,186		912,186
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		684,140		684,140
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		182,437		182,437
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,573,351		1,573,351
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		237,168		237,168
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		547,312		547,312

	Principal Amount		Market Value
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007	$	273,656	$	273,656
				23,836,678
Repurchase Agreement — 5.1%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		14,812,969		14,812,969
TOTAL SHORT-TERM INVESTMENTS (Cost $38,649,647)				38,649,647
TOTAL INVESTMENTS — 107.9% (Cost $292,033,794)(f)				315,317,178
Other Assets/ (Liabilities) — (7.9%)				(22,960,144	)
NET ASSETS — 100.0%			$	292,357,034

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Denotes all or a portion of security on loan. (Note 2).

(b) Non-income producing security.

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $14,818,729. Collateralized by a U.S. Government Agency Obligation with a rate of 4.216%, maturity date of 05/01/2035, and an aggregate market value, including accrued interest of $15,553,617.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Income & Growth Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 99.6%
COMMON STOCK — 99.6%
Aerospace & Defense — 2.1%
Lockheed Martin Corp.(a)		3,873	$	356,586
Northrop Grumman Corp.		46,102		3,121,105
Raytheon Co.		4,235		223,608
				3,701,299
Air Transportation — 0.1%
Southwest Airlines Co.		15,378		235,591
Apparel, Textiles & Shoes — 0.1%
Brown Shoe Co., Inc.		4,939		235,788
Automotive & Parts — 2.7%
ArvinMeritor, Inc.(a)		76,186		1,388,871
AutoNation, Inc.(b)		21,421		456,696
Group 1 Automotive, Inc.		21,515		1,112,756
Magna International, Inc. Cl. A(a)		23,591		1,900,255
				4,858,578
Banking, Savings & Loans — 7.2%
Bank of America Corp.		120,735		6,446,042
Capital One Financial Corp.		1,597		122,682
Comerica, Inc.		8,503		498,956
Corus Bankshares, Inc.(a)		31,100		717,477
FirstFed Financial Corp.(a) (b)		1,557		104,272
Washington Mutual, Inc.		106,125		4,827,626
Wells Fargo & Co.		5,636		200,416
				12,917,471
Beverages — 0.1%
Coca-Cola Enterprises, Inc.		1,002		20,461
The Pepsi Bottling Group, Inc.		4,378		135,324
				155,785
Broadcasting, Publishing & Printing — 0.6%
CBS Corp. Cl. B		25,635		799,299
Idearc, Inc.(b)		4,549		130,329
Liberty Media Holding Corp. Capital Cl. A(b)		1,216		119,144
				1,048,772
Building Materials & Construction — 0.3%
USG Corp.(a) (b)		11,284		618,363
Chemicals — 2.2%
Celanese Corp. Cl. A		15,845		410,069

	Number of Shares		Market Value
Eastman Chemical Co.		2,703	$	160,315
Georgia Gulf Corp.		7,534		145,482
Lyondell Chemical Co.		93,953		2,402,378
Westlake Chemical Corp.(a)		29,366		921,505
				4,039,749
Commercial Services — 1.4%
Accenture Ltd. Cl. A		43,282		1,598,404
Donnelley (R.R.) & Sons Co.		8,875		315,418
John H. Harland Co.		9,342		468,968
Labor Ready, Inc.(b)		7,200		131,976
				2,514,766
Communications — 0.3%
Motorola, Inc.		29,264		601,668
Computer Integrated Systems Design — 0.5%
Computer Sciences Corp.(b)		17,630		940,913
Computer Programming Services — 0.1%
RealNetworks, Inc.(b)		19,870		217,378
Computer Related Services — 0.9%
Acxiom Corp.		24,681		633,068
EarthLink, Inc.(b)		144,003		1,022,421
				1,655,489
Computers & Information — 5.3%
Cisco Systems, Inc.(b)		10,554		288,441
International Business Machines Corp.		89,662		8,710,663
Lexmark International, Inc.(b)		5,549		406,187
Tech Data Corp.(b)		3,063		115,996
				9,521,287
Computers & Office Equipment — 2.4%
Hewlett-Packard Co.		105,282		4,336,566
Containers — 0.2%
Temple-Inland, Inc.		7,048		324,419
Cosmetics & Personal Care — 2.0%
Kimberly-Clark Corp.		48,512		3,296,390
The Procter & Gamble Co.		5,469		351,493
				3,647,883
Electric Utilities — 1.1%
FirstEnergy Corp.		7,515		452,478
PG&E Corp.		5,113		241,998
Progress Energy, Inc.		4,022		197,400
TXU Corp.		21,307		1,155,052
				2,046,928

	Number of Shares		Market Value
Electrical Equipment & Electronics — 1.8%
Amkor Technology, Inc.(a) (b)		39,410	$	368,089
Arrow Electronics, Inc.(b)		14,034		442,773
General Electric Co.		10,652		396,361
Imation Corp.		1,361		63,191
Intel Corp.		2,044		41,391
NAM TAI Electronics, Inc.		18,670		283,597
National Semiconductor Corp.(a)		13,351		303,068
OmniVision Technologies, Inc.(a) (b)		31,147		425,157
Texas Instruments, Inc.		1,714		49,363
Vishay Intertechnology, Inc.(b)		69,290		938,187
				3,311,177
Energy — 14.2%
Chevron Corp.		64,236		4,723,273
ConocoPhillips Co.		49,012		3,526,413
EnCana Corp.		5,244		240,962
Exxon Mobil Corp.		127,385		9,761,513
Grey Wolf, Inc.(b)		57,476		394,285
Marathon Oil Corp.		23,945		2,214,913
Nicor, Inc.(a)		1,926		90,137
Occidental Petroleum Corp.		25,000		1,220,750
Sunoco, Inc.		9,995		623,288
Tesoro Corp.		8,495		558,716
UGI Corp.		32,323		881,771
Valero Energy Corp.		15,098		772,414
Vectren Corp.		21,154		598,235
				25,606,670
Entertainment & Leisure — 0.4%
Regal Entertainment Group Cl. A		5,143		109,649
The Walt Disney Co.		19,660		673,748
				783,397
Financial Services — 15.2%
CBL & Associates Properties, Inc. REIT		38,207		1,656,273
Citigroup, Inc.		155,201		8,644,696
Countrywide Financial Corp.		30,770		1,306,187
The Goldman Sachs Group, Inc.		20,390		4,064,747
IndyMac Bancorp, Inc.(a)		44,806		2,023,439
iStar Financial, Inc.		34,712		1,659,928
Lehman Brothers Holdings, Inc.		18,245		1,425,299
Merrill Lynch & Co., Inc.		5,132		477,789
Morgan Stanley		75,906		6,181,026

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Income & Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Thornburg Mortgage, Inc. REIT(a)		900	$	22,617
				27,462,001
Food Retailers — 1.0%
The Pantry, Inc.(b)		872		40,845
SuperValu, Inc.		49,724		1,777,633
				1,818,478
Foods — 1.2%
ConAgra Foods, Inc.		3,343		90,261
Del Monte Foods Co.		12,192		134,478
General Mills, Inc.		24,295		1,399,392
Seaboard Corp.(a)		260		458,900
				2,083,031
Forest Products & Paper — 0.3%
Building Materials Holding Corp.(a)		23,288		574,981
Healthcare — 0.8%
Apria Healthcare Group, Inc.(b)		12,152		323,851
Humana, Inc.(b)		19,892		1,100,227
				1,424,078
Home Construction, Furnishings & Appliances — 0.7%
Lennar Corp. Cl. A(a)		11,738		615,775
NVR, Inc.(a) (b)		1,117		720,465
				1,336,240
Household Products — 1.0%
Newell Rubbermaid, Inc.		25,217		730,032
Tupperware Brands Corp.		43,658		987,107
				1,717,139
Industrial – Diversified — 0.5%
Tyco International Ltd.		29,565		898,776
Insurance — 5.2%
ACE Ltd.		50,727		3,072,534
Aetna, Inc.		5,601		241,851
American Financial Group, Inc.		6,681		239,915
American International Group, Inc.		4,190		300,255
AMERIGROUP Corp.(a) (b)		23,350		838,032
Arch Capital Group Ltd.(b)		14,194		959,656
Aspen Insurance Holdings Ltd.		7,951		209,588
Axis Capital Holdings Ltd.		16,549		552,240
Chubb Corp.		12,741		674,126
Endurance Specialty Holdings Ltd.		39,016		1,427,205
Molina Healthcare, Inc.(b)		1,492		48,505
PartnerRe Ltd.(a)		4,969		352,948

	Number of Shares		Market Value
WellCare Health Plans, Inc.(b)		5,923	$	408,095
Zenith National Insurance Corp.		1,230		57,699
				9,382,649
Machinery & Components — 1.8%
Cummins, Inc.(a)		28,145		3,326,176
Manufacturing — 0.2%
Lam Research Corp.(b)		6,391		323,512
Medical Supplies — 1.8%
Applera Corp. - Applied Biosystems Group		45,548		1,671,156
Becton, Dickinson & Co.		22,324		1,566,029
				3,237,185
Metals & Mining — 2.6%
Freeport-McMoRan Copper & Gold, Inc. Cl. B(a)		13,512		753,024
Ipsco, Inc.		5,897		553,551
Nucor Corp.		4,751		259,690
Phelps Dodge Corp.		13,759		1,647,227
Quanex Corp.		7,713		266,793
Steel Dynamics, Inc.		20,218		656,074
United States Steel Corp.		8,221		601,284
				4,737,643
Pharmaceuticals — 9.5%
AmerisourceBergen Corp.		3,534		158,889
Amgen, Inc.(b)		24,333		1,662,187
Biovail Corp.(a)		65,302		1,381,790
Cephalon, Inc.(a) (b)		3,752		264,178
ImClone Systems, Inc.(a) (b)		5,500		147,180
Johnson & Johnson		39,355		2,598,217
King Pharmaceuticals, Inc.(b)		42,941		683,621
McKesson Corp.		39,230		1,988,961
Merck & Co., Inc.		80,923		3,528,243
Pfizer, Inc.		169,935		4,401,317
ViroPharma, Inc.(b)		17,680		258,835
				17,073,418
Photography Equipment/Supplies — 0.1%
Eastman Kodak Co.		3,544		91,435
Prepackaged Software — 2.2%
BMC Software, Inc.(b)		842		27,112
Microsoft Corp.		102,504		3,060,769
Sybase, Inc.(b)		6,750		166,725
United Online, Inc.(a)		59,450		789,496
				4,044,102

	Number of Shares		Market Value
Restaurants — 1.0%
Darden Restaurants, Inc.(a)		15,785	$	634,083
McDonald's Corp.		27,977		1,240,220
				1,874,303
Retail — 1.2%
Barnes & Noble, Inc.		24,695		980,638
Big Lots, Inc.(b)		16,089		368,760
Federated Department Stores, Inc.		22,142		844,274
				2,193,672
Telephone Utilities — 4.2%
AT&T, Inc.(a)		76,170		2,723,078
Embarq Corp.		1,573		82,677
Sprint Nextel Corp.(a)		74,503		1,407,362
Verizon Communications, Inc.		90,991		3,388,505
				7,601,622
Tobacco — 0.1%
Altria Group, Inc.		2,615		224,419
Toys, Games — 0.5%
Hasbro, Inc.		9,315		253,834
Mattel, Inc.		28,466		645,040
				898,874
Transportation — 2.0%
Burlington Northern Santa Fe Corp.		6,958		513,570
CSX Corp.		7,158		246,450
FedEx Corp.		4,743		515,185
Norfolk Southern Corp.		7,257		364,955
Union Pacific Corp.		4,736		435,807
United Parcel Service, Inc. Cl. B		19,738		1,479,955
				3,555,922
Travel — 0.5%
Expedia, Inc.(a) (b)		44,388		931,260
TOTAL EQUITIES (Cost $162,119,495)				180,130,853
	Principal Amount
SHORT-TERM INVESTMENTS — 10.0%
Cash Equivalents — 9.7%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	436,960		436,960
American Beacon Money Market Fund(c)		150,906		150,906

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Income & Growth Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007	$	638,632	$	638,632
Bank of America 5.270% 01/09/2007		336,122		336,122
Bank of America 5.310% 03/08/2007		336,122		336,122
Bank of America 5.320% 02/16/2007		100,837		100,837
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		201,673		201,673
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		672,244		672,244
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		436,959		436,959
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		168,061		168,061
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		336,122		336,122
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		336,122		336,122
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		100,837		100,837
BGI Institutional Money Market Fund(c)		317,532		317,532
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		504,183		504,183
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		168,061		168,061
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		168,061		168,061
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		618,465		618,465
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		504,183		504,183
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		168,061		168,061

	Principal Amount		Market Value
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007	$	336,122	$	336,122
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		336,122		336,122
Dreyfus Cash Management Plus Money Market Fund(c)		120,062		120,062
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		56,296		56,296
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		87,712		87,712
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		336,122		336,122
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		134,449		134,449
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		504,183		504,183
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		504,183		504,183
Freddie Mac Discount Note 5.231% 01/23/2007		133,768		133,768
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		168,061		168,061
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		301,113		301,113
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		470,571		470,571
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		336,122		336,122
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		268,898		268,898
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		504,183		504,183

	Principal Amount		Market Value
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007	$	201,673	$	201,673
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		840,305		840,305
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		302,510		302,510
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		336,122		336,122
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		497,461		497,461
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		336,122		336,122
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		67,224		67,224
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		168,061		168,061
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		268,898		268,898
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		672,244		672,244
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		504,183		504,183
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		134,449		134,449
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,159,496		1,159,496
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		174,784		174,784
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		403,347		403,347
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		201,673		201,673
				17,566,662

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Income & Growth Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Repurchase Agreement — 0.3%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)	$	538,934	$	538,934
TOTAL SHORT-TERM INVESTMENTS (Cost $18,105,596)				18,105,596
TOTAL INVESTMENTS — 109.6% (Cost $180,225,091)(f)				198,236,449
Other Assets/ (Liabilities) — (9.6%)				(17,432,443	)
NET ASSETS — 100.0%			$	180,804,006

Notes to Portfolio of Investments

REIT - Real Estate Investment Trust

(a) Denotes all or a portion of security on loan. (Note 2).

(b) Non-income producing security.

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $539,144. Collateralized by a U.S. Government Agency Obligation with a rate of 7.625%, maturity date of 11/25/2013, and an aggregate market value, including accrued interest of $565,881.

(f) See Note 6 for aggregate cost for Federal tax purpose.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Growth & Income Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 98.3%
COMMON STOCK — 98.3%
Advertising — 0.8%
Getty Images, Inc.(a) (b)		37,400	$	1,601,468
Omnicom Group, Inc.		8,000		836,320
				2,437,788
Aerospace & Defense — 1.3%
United Technologies Corp.		63,300		3,957,516
Apparel, Textiles & Shoes — 0.6%
Hanesbrands, Inc.(a)		60,775		1,435,506
Urban Outfitters, Inc.(a) (b)		19,400		446,782
				1,882,288
Automotive & Parts — 0.3%
Ford Motor Co.(b)		21,400		160,714
General Motors Corp.(b)		25,100		771,072
				931,786
Banking, Savings & Loans — 12.4%
Capital One Financial Corp.		14,100		1,083,162
Compass Bancshares, Inc.		7,900		471,235
Fannie Mae		41,500		2,464,685
Fifth Third Bancorp		37,300		1,526,689
Freddie Mac		28,400		1,928,360
Hudson City Bancorp, Inc.		142,500		1,977,900
JP Morgan Chase & Co.		104,200		5,032,860
SLM Corp.		149,900		7,310,623
Wachovia Corp.		103,453		5,891,648
Washington Mutual, Inc.		130,900		5,954,641
Wells Fargo & Co.		110,900		3,943,604
				37,585,407
Beverages — 1.9%
Anheuser-Busch Cos., Inc.		10,300		506,760
The Coca-Cola Co.		29,200		1,408,900
PepsiCo, Inc.		61,400		3,840,570
				5,756,230
Broadcasting, Publishing & Printing — 2.0%
Cablevision Systems Corp. Cl. A		29,000		825,920
CBS Corp. Cl. B		34,000		1,060,120
Clear Channel Communications, Inc.		44,400		1,577,976
Comcast Corp. Cl. A(a)		19,600		829,668
Idearc, Inc.(a)		2,665		76,352
Time Warner, Inc.		38,800		845,064
Viacom, Inc. Cl. B(a)		16,700		685,201
				5,900,301

	Number of Shares		Market Value
Chemicals — 2.0%
Dow Chemical Co.		41,100	$	1,641,534
Du Pont (E.I.) de Nemours & Co.		13,400		652,714
Huntsman Corp.(a)		74,800		1,418,956
Methanex Corp.		29,600		810,152
Potash Corp. of Saskatchewan(b)		6,200		889,576
Rohm & Haas Co.(b)		11,900		608,328
				6,021,260
Commercial Services — 2.7%
eBay, Inc.(a)		85,900		2,583,013
Fluor Corp.		51,900		4,237,635
Paychex, Inc.		14,700		581,238
Siemens AG Sponsored ADR (Germany)(b)		8,300		817,965
				8,219,851
Communications — 0.7%
American Tower Corp. Cl. A(a)		17,800		663,584
Motorola, Inc.		38,900		799,784
Qualcomm, Inc.		15,500		585,745
				2,049,113
Computer Integrated Systems Design — 0.7%
Sun Microsystems, Inc.(a)		384,400		2,083,448
Computer Programming Services — 0.7%
SAP AG Sponsored ADR (Germany)(b)		40,700		2,161,170
Computers & Information — 5.2%
Cisco Systems, Inc.(a)		259,500		7,092,135
Dell, Inc.(a)		77,200		1,936,948
Jabil Circuit, Inc.		48,400		1,188,220
SanDisk Corp.(a)		75,800		3,261,674
Seagate Technology		87,400		2,316,100
				15,795,077
Computers & Office Equipment — 0.3%
Hewlett-Packard Co.		18,300		753,777
Cosmetics & Personal Care — 0.6%
Avon Products, Inc.		52,000		1,718,080
Data Processing & Preparation — 0.7%
Affiliated Computer Services, Inc. Cl. A(a) (b)		32,300		1,577,532
Automatic Data Processing, Inc.		13,500		664,875
				2,242,407

	Number of Shares		Market Value
Electric Utilities — 1.4%
AES Corp.(a)		67,100	$	1,478,884
CMS Energy Corp.(a)		56,000		935,200
Exelon Corp.		6,800		420,852
MDU Resources Group, Inc.		24,450		626,898
NiSource, Inc.		30,000		723,000
				4,184,834
Electrical Equipment & Electronics — 10.0%
Altera Corp.(a)		148,900		2,930,352
ASML Holding NV(a)		28,000		689,640
Emerson Electric Co.		25,400		1,119,378
Fairchild Semiconductor International, Inc.(a)		46,400		779,984
Flextronics International Ltd.(a)		208,100		2,388,988
General Electric Co.		214,000		7,962,940
Intel Corp.		171,600		3,474,900
International Rectifier Corp.(a)		45,600		1,756,968
Johnson Controls, Inc.		11,100		953,712
KLA-Tencor Corp.		74,500		3,706,375
Linear Technology Corp.		30,600		927,792
Qimonda AG ADR (Germany)(a)		30,600		535,806
Silicon Laboratories, Inc.(a) (b)		16,500		571,725
Xilinx, Inc.(b)		98,700		2,350,047
				30,148,607
Energy — 7.2%
Anadarko Petroleum Corp.		12,900		561,408
Arch Coal, Inc.(b)		33,800		1,015,014
BJ Services Co.		50,400		1,477,728
Chevron Corp.		22,800		1,676,484
EOG Resources, Inc.		10,000		624,500
Exxon Mobil Corp.		26,000		1,992,380
Halliburton Co.		34,000		1,055,700
Kinder Morgan, Inc.		8,700		920,025
Royal Dutch Shell PLC Sponsored ADR (United Kingdom)		76,100		5,387,119
Schlumberger Ltd.		74,800		4,724,368
Weatherford International Ltd.		52,300		2,185,617
				21,620,343
Entertainment & Leisure — 1.0%
The Walt Disney Co.		89,200		3,056,884

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth & Income Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Financial Services — 1.7%
AmeriCredit Corp.(a) (b)		29,800	$	750,066
Berkshire Hathaway, Inc. Cl. A(a)		18		1,979,820
Douglas Emmett, Inc. REIT		16,600		441,394
The Goldman Sachs Group, Inc.		4,000		797,400
IndyMac Bancorp, Inc.(b)		15,800		713,528
Merrill Lynch & Co., Inc.		6,300		586,530
				5,268,738
Foods — 2.6%
Campbell Soup Co.		23,900		929,471
Heinz (H. J.) Co.		14,100		634,641
Kraft Foods, Inc. Cl. A(b)		46,900		1,674,330
Sara Lee Corp.		173,900		2,961,517
Sysco Corp.		46,100		1,694,636
				7,894,595
Forest Products & Paper — 0.3%
International Paper Co.		27,100		924,110
Healthcare — 1.3%
DaVita, Inc.(a)		23,100		1,313,928
Lincare Holdings, Inc.(a)		25,300		1,007,952
UnitedHealth Group, Inc.		32,300		1,735,479
				4,057,359
Home Construction, Furnishings & Appliances — 0.4%
Leggett & Platt, Inc.		37,100		886,690
Lennar Corp. Cl. A		7,300		382,958
				1,269,648
Household Products — 0.9%
Fortune Brands, Inc.		8,300		708,737
Jarden Corp.(a) (b)		16,500		574,035
Unilever NV NY Shares (Netherlands)		55,600		1,515,100
				2,797,872
Industrial – Diversified — 2.3%
Cooper Industries Ltd. Cl. A		9,500		859,085
Corning, Inc.(a)		66,500		1,244,215
Danaher Corp.		34,900		2,528,156
Illinois Tool Works, Inc.		53,200		2,457,308
				7,088,764
Information Retrieval Services — 2.4%
Google, Inc. Cl. A(a)		12,800		5,894,144
Yahoo!, Inc.(a)		52,700		1,345,958
				7,240,102

	Number of Shares		Market Value
Insurance — 3.4%
AFLAC, Inc.		13,700	$	630,200
American International Group, Inc.		36,800		2,637,088
Marsh & McLennan Cos., Inc.		80,200		2,458,932
RenaissanceRe Holdings Ltd.		14,100		846,000
WellPoint, Inc.(a)		26,900		2,116,761
XL Capital Ltd. Cl. A		19,900		1,433,198
				10,122,179
Lodging — 1.1%
Host Hotels & Resorts, Inc.		14,600		358,430
Las Vegas Sands Corp.(a)		24,200		2,165,416
Starwood Hotels & Resorts Worldwide, Inc.		12,700		793,750
				3,317,596
Machinery & Components — 0.9%
Baker Hughes, Inc.		37,300		2,784,818
Manufacturing — 2.1%
American Standard Cos., Inc.		45,500		2,086,175
Applied Materials, Inc.		233,000		4,298,850
				6,385,025
Medical Supplies — 3.0%
Agilent Technologies, Inc.(a)		15,500		540,175
Allergan, Inc.		31,400		3,759,836
Baxter International, Inc.		64,100		2,973,599
Medtronic, Inc.		33,800		1,808,638
				9,082,248
Metals & Mining — 1.3%
Alcoa, Inc.		57,400		1,722,574
Barrick Gold Corp.		39,500		1,212,650
Newmont Mining Corp.		20,800		939,120
				3,874,344
Pharmaceuticals — 7.4%
Amgen, Inc.(a)		8,800		601,128
AstraZeneca PLC Sponsored ADR (United Kingdom)		114,000		6,104,700
Endo Pharmaceuticals Holdings, Inc.(a)		18,800		518,504
Forest Laboratories, Inc.(a)		160,700		8,131,420
ImClone Systems, Inc.(a) (b)		50,800		1,359,408
McKesson Corp.		15,100		765,570
Medco Health Solutions, Inc.(a)		9,200		491,648

	Number of Shares		Market Value
Millennium Pharmaceuticals, Inc.(a) (b)		98,000	$	1,068,200
Pfizer, Inc.		24,200		626,780
Sepracor, Inc.(a)		19,100		1,176,178
Teva Pharmaceutical Sponsored ADR (Israel)		53,100		1,650,348
				22,493,884
Prepackaged Software — 3.7%
Cerner Corp.(a) (b)		13,800		627,900
Compuware Corp.(a)		77,500		645,575
Microsoft Corp.		331,800		9,907,548
				11,181,023
Real Estate — 0.2%
General Growth Properties, Inc. REIT		12,500		652,875
Restaurants — 0.4%
The Cheesecake Factory(a)		16,900		415,740
McDonald's Corp.		17,400		771,342
				1,187,082
Retail — 5.1%
Best Buy Co., Inc.		26,200		1,288,778
Dollar Tree Stores, Inc.(a)		40,600		1,222,060
The Home Depot, Inc.		37,300		1,497,968
Lowe's Companies, Inc.(b)		194,600		6,061,790
Target Corp.		92,700		5,288,535
				15,359,131
Telephone Utilities — 1.8%
AT&T, Inc.		41,100		1,469,325
Qwest Communications International, Inc.(a)		89,800		751,626
Sprint Nextel Corp.		107,900		2,038,231
Verizon Communications, Inc.		34,500		1,284,780
				5,543,962
Tobacco — 1.8%
Altria Group, Inc.		62,200		5,338,004
Transportation — 1.7%
Carnival Corp.(b)		9,700		475,785
FedEx Corp.		4,800		521,376
United Parcel Service, Inc. Cl. B		55,800		4,183,884
				5,181,045
TOTAL COMMON STOCK (Cost $287,856,611)				297,550,571
TOTAL EQUITIES (Cost $287,856,611)				297,550,571

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth & Income Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
BONDS & NOTES — 0.3%
CORPORATE DEBT — 0.3%
Automotive & Parts
Ford Motor Co. 4.250% 12/15/2036	$	729,000	$	779,119
TOTAL CORPORATE DEBT (Cost $733,530)				779,119
TOTAL BONDS & NOTES (Cost $733,530)				779,119
TOTAL LONG TERM INVESTMENTS (Cost $288,590,141)				298,329,690
SHORT-TERM INVESTMENTS — 8.4%
Cash Equivalents — 7.0%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007		525,209		525,209
American Beacon Money Market Fund(c)		181,384		181,384
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		767,613		767,613
Bank of America 5.270% 01/09/2007		404,007		404,007
Bank of America 5.310% 03/08/2007		404,007		404,007
Bank of America 5.320% 02/16/2007		121,202		121,202
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		242,404		242,404
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		808,013		808,013
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		525,208		525,208
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		202,003		202,003
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		404,006		404,006
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		404,006		404,006
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		121,202		121,202
BGI Institutional Money Market Fund(c)		381,663		381,663

	Principal Amount		Market Value
Calyon Eurodollar Time Deposit 5.290% 03/05/2007	$	606,009	$	606,009
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		202,003		202,003
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		202,003		202,003
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		743,372		743,372
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		606,009		606,009
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		202,003		202,003
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		404,006		404,006
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		404,006		404,006
Dreyfus Cash Management Plus Money Market Fund(c)		144,310		144,310
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		67,666		67,666
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		105,426		105,426
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		404,006		404,006
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		161,603		161,603
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		606,009		606,009
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		606,009		606,009
Freddie Mac Discount Note 5.231% 01/23/2007		160,784		160,784
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		202,003		202,003

	Principal Amount		Market Value
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)	$	361,926	$	361,926
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		565,609		565,609
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		404,006		404,006
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		323,205		323,205
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		606,009		606,009
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		242,404		242,404
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		1,010,016		1,010,016
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		363,606		363,606
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		404,006		404,006
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		597,929		597,929
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		404,006		404,006
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		80,801		80,801
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		202,003		202,003
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		323,205		323,205
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		808,013		808,013
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		606,009		606,009

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Growth & Income Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007	$	161,603	$	161,603
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,393,671		1,393,671
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		210,083		210,083
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		484,808		484,808
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		242,404		242,403
				21,114,475
Repurchase Agreement — 1.4%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		4,324,465		4,324,465
TOTAL SHORT-TERM INVESTMENTS (Cost $25,438,940)				25,438,940
TOTAL INVESTMENTS — 107.0% (Cost $314,029,081)(f)				323,768,630
Other Assets/ (Liabilities) — (7.0%)				(21,128,082	)
NET ASSETS — 100.0%			$	302,640,548

Notes to Portfolio of Investments

ADR - American Depository Receipt

REIT - Real Estate Investment Trust

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $4,326,146. Collateralized by a U.S. Government Agency obligation with a rate of 8.625%, maturity date of 09/25/2027, and aggregate market value, including accrued interest, of $4,540,688.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Blue Chip Growth Fund – Portfolio of Investment

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 99.4%
COMMON STOCK — 99.4%
Advertising — 0.5%
Monster Worldwide, Inc.(a)		6,100	$	284,504
Aerospace & Defense — 1.1%
General Dynamics Corp.		5,600		416,360
Rockwell Collins, Inc.		3,000		189,870
				606,230
Apparel, Textiles & Shoes — 0.0%
Coach, Inc.(a)		300		12,888
Automotive & Parts — 0.1%
Harley-Davidson, Inc.(b)		400		28,188
Banking, Savings & Loans — 4.9%
Mellon Financial Corp.		6,700		282,405
Northern Trust Corp.		7,600		461,244
SLM Corp.		9,500		463,315
State Street Corp.		15,000		1,011,600
Wells Fargo & Co.		13,600		483,616
				2,702,180
Beverages — 0.8%
PepsiCo, Inc.		7,300		456,615
Broadcasting, Publishing & Printing — 1.6%
Grupo Televisa SA Sponsored ADR (Mexico)		9,400		253,894
Time Warner, Inc.		13,800		300,564
Viacom, Inc. Cl. B(a)		7,500		307,725
				862,183
Chemicals — 0.8%
Monsanto Co.		8,200		430,746
Commercial Services — 0.5%
eBay, Inc.(a)		7,200		216,504
Paychex, Inc.		900		35,586
				252,090
Communications — 4.4%
America Movil SA de CV Sponsored ADR Series L (Mexico)		11,000		497,420
American Tower Corp. Cl. A(a)		18,400		685,952
Nokia Oyj Sponsored ADR (Finland)		20,200		410,464
Qualcomm, Inc.		5,600		211,624
Rogers Communications, Inc. Cl. B(b)		5,600		333,760

	Number of Shares		Market Value
Telefonaktiebolaget LM Ericsson Cl. B		70,200	$	281,815
				2,421,035
Computer Integrated Systems Design — 0.6%
Autodesk, Inc.(a)		7,700		311,542
Computers & Information — 4.8%
Apple, Inc.(a)		7,200		610,848
Cisco Systems, Inc.(a)		38,400		1,049,472
Dell, Inc.(a)		6,800		170,612
EMC Corp.(a)		18,400		242,880
International Game Technology		12,400		572,880
				2,646,692
Cosmetics & Personal Care — 1.6%
The Procter & Gamble Co.		13,600		874,072
Data Processing & Preparation — 1.2%
Automatic Data Processing, Inc.		13,200		650,100
Electrical Equipment & Electronics — 8.8%
Analog Devices, Inc.		10,300		338,561
Garmin Ltd.(b)		1,000		55,660
General Electric Co.		56,400		2,098,644
Intel Corp.		16,000		324,000
Linear Technology Corp.		6,600		200,112
Marvell Technology Group Ltd.(a) (b)		29,100		558,429
Maxim Integrated Products, Inc.		19,100		584,842
Texas Instruments, Inc.		9,500		273,600
Xilinx, Inc.		16,100		383,341
				4,817,189
Energy — 4.6%
EOG Resources, Inc.		2,400		149,880
Exxon Mobil Corp.		10,000		766,300
Murphy Oil Corp.(b)		4,400		223,740
Schlumberger Ltd.		16,800		1,061,088
Total SA Sponsored ADR (France)		4,500		323,640
				2,524,648
Financial Services — 13.0%
American Express Co.		14,000		849,380
Ameriprise Financial, Inc.		500		27,250
Chicago Mercantile Exchange Holdings, Inc.		500		254,875
Citigroup, Inc.		13,300		740,810
Countrywide Financial Corp.		6,800		288,660

	Number of Shares		Market Value
Deutsche Boerse AG		1,001	$	183,680
E*TRADE Financial Corp.(a)		17,300		387,866
Franklin Resources, Inc.		6,800		749,156
The Goldman Sachs Group, Inc.		3,700		737,595
IntercontinentalExchange, Inc.(a)		1,000		107,900
Legg Mason, Inc.		5,600		532,280
Merrill Lynch & Co., Inc.		5,100		474,810
Morgan Stanley		6,900		561,867
The Charles Schwab Corp.		27,200		526,048
UBS AG Registered(b)		11,763		710,908
				7,133,085
Foods — 0.4%
Sysco Corp.		6,200		227,912
Healthcare — 4.9%
Caremark Rx, Inc.		14,600		833,806
DaVita, Inc.(a)		600		34,128
Express Scripts, Inc.(a)		4,600		329,360
Humana, Inc.(a)		2,200		121,682
UnitedHealth Group, Inc.		25,000		1,343,250
				2,662,226
Home Construction, Furnishings & Appliances — 1.0%
Harman International Industries, Inc.		5,700		569,487
Household Products — 0.3%
Fortune Brands, Inc.(b)		1,700		145,163
Industrial – Diversified — 3.8%
Corning, Inc.(a)		4,600		86,066
Danaher Corp.		18,900		1,369,116
Illinois Tool Works, Inc.		3,900		180,141
Tyco International Ltd.		14,300		434,720
				2,070,043
Information Retrieval Services — 3.6%
Google, Inc. Cl. A(a)		2,600		1,197,248
Juniper Networks, Inc.(a)		23,300		441,302
Yahoo!, Inc.(a) (b)		13,000		332,020
				1,970,570
Insurance — 5.1%
Aetna, Inc.		10,100		436,118
American International Group, Inc.		13,500		967,410
The Hartford Financial Services Group, Inc.		2,500		233,275
Prudential Financial, Inc.		5,800		497,988

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Blue Chip Growth Fund – Portfolio of Investment (Continued)

	Number of Shares		Market Value
WellPoint, Inc.(a)		8,700	$	684,603
				2,819,394
Lodging — 2.7%
Las Vegas Sands Corp.(a)		1,300		116,324
Marriott International, Inc. Cl. A		9,700		462,884
MGM Mirage(a)		3,100		177,785
Wynn Resorts Ltd.(b)		7,500		703,875
				1,460,868
Machinery & Components — 2.7%
Baker Hughes, Inc.		8,000		597,280
Joy Global, Inc.		3,200		154,688
Smith International, Inc.(b)		17,400		714,618
				1,466,586
Manufacturing — 0.5%
Applied Materials, Inc.		15,800		291,510
Medical Supplies — 3.4%
Allergan, Inc.		1,900		227,506
Medtronic, Inc.		13,200		706,332
St. Jude Medical, Inc.(a)		9,400		343,664
Stryker Corp.		7,700		424,347
Thermo Fisher Scientific, Inc.(a)		3,200		144,928
				1,846,777
Pharmaceuticals — 9.7%
Alcon, Inc.		1,100		122,947
Amgen, Inc.(a)		12,800		874,368
Cardinal Health, Inc.		1,400		90,202
Celgene Corp.(a) (b)		7,600		437,228
Genentech, Inc.(a) (b)		7,300		592,249
Gilead Sciences, Inc.(a)		10,100		655,793
Johnson & Johnson		3,300		217,866
Medco Health Solutions, Inc.(a)		5,900		315,296
Novartis AG		7,053		404,585
Pfizer, Inc.		11,700		303,030
Roche Holding AG		2,894		516,864
Sepracor, Inc.(a)		6,900		424,902
Wyeth		7,200		366,624
				5,321,954
Prepackaged Software — 4.7%
Adobe Systems, Inc.(a)		9,200		378,304
Electronic Arts, Inc.(a)		600		30,216
Intuit, Inc.(a)		5,600		170,856
Microsoft Corp.		49,500		1,478,070
Oracle Corp.(a)		29,200		500,488
				2,557,934

	Number of Shares		Market Value
Restaurants — 0.1%
McDonald's Corp.		1,100	$	48,763
Retail — 6.5%
Amazon.com, Inc.(a) (b)		13,100		516,926
Bed Bath & Beyond, Inc.(a) (b)		5,900		224,790
Best Buy Co., Inc.		2,400		118,056
CVS Corp.		12,300		380,193
The Home Depot, Inc.		10,200		409,632
Kohl's Corp.(a)		13,400		916,962
Target Corp.		10,500		599,025
Wal-Mart Stores, Inc.		8,400		387,912
				3,553,496
Telephone Utilities — 0.3%
TELUS Corp.(b)		3,100		138,477
Transportation — 0.4%
Expeditors International of Washington, Inc.		1,300		52,650
Norfolk Southern Corp.		1,200		60,348
Union Pacific Corp.		1,100		101,222
				214,220
TOTAL EQUITIES (Cost $50,483,757)				54,379,367
	Principal Amount
SHORT-TERM INVESTMENTS — 9.0%
Cash Equivalents — 8.4%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	114,896		114,896
American Beacon Money Market Fund(c)		39,681		39,681
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		167,924		167,924
Bank of America 5.270% 01/09/2007		88,381		88,381
Bank of America 5.310% 03/08/2007		88,380		88,380
Bank of America 5.320% 02/16/2007		26,515		26,515
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		53,028		53,028
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		176,762		176,762

	Principal Amount		Market Value
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007	$	114,896	$	114,896
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		44,190		44,190
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		88,380		88,380
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		88,380		88,380
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		26,514		26,514
BGI Institutional Money Market Fund(c)		83,492		83,492
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		132,571		132,571
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		44,190		44,190
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		44,190		44,190
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		162,620		162,620
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		132,571		132,571
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		44,190		44,190
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		88,380		88,380
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		88,380		88,380
Dreyfus Cash Management Plus Money Market Fund(c)		31,569		31,569
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		14,803		14,803
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		23,063		23,063

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Blue Chip Growth Fund – Portfolio of Investment (Continued)

	Principal Amount		Market Value
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007	$	88,380	$	88,380
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		35,352		35,352
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		132,571		132,571
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		132,571		132,571
Freddie Mac Discount Note 5.231% 01/23/2007		35,173		35,173
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		44,190		44,190
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		79,175		79,175
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		123,733		123,733
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		88,380		88,380
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		70,704		70,704
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		132,571		132,571
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		53,028		53,028
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		220,951		220,951
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		79,542		79,542
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		88,380		88,380
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		130,803		130,803

	Principal Amount		Market Value
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007	$	88,380	$	88,380
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		17,676		17,676
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		44,190		44,190
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		70,704		70,704
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		176,761		176,761
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		132,571		132,571
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		35,352		35,352
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		304,880		304,880
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		45,958		45,958
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		106,057		106,057
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		53,028		53,028
				4,619,007
Repurchase Agreement — 0.6%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		320,781		320,781
TOTAL SHORT-TERM INVESTMENTS (Cost $4,939,788)				4,939,788
TOTAL INVESTMENTS — 108.4% (Cost $55,423,545)(f)				59,319,155
Other Assets/ (Liabilities) — (8.4%)				(4,573,117	)
NET ASSETS — 100.0%			$	54,746,038

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $320,906. Collateralized by a U.S. Government Agency obligation with a rate of 8.125%, maturity date of 02/25/2024, and aggregate market value, including accrued interest, of $336,820.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Large Cap Growth Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 99.0%
COMMON STOCK — 99.0%
Aerospace & Defense — 6.0%
Boeing Co.		29,310	$	2,603,900
Rockwell Collins, Inc.		23,300		1,474,657
Spirit AeroSystems Holdings, Inc. Cl. A(a)		17,300		579,031
				4,657,588
Apparel, Textiles & Shoes — 0.5%
Nike, Inc. Cl. B		4,100		406,023
Banking, Savings & Loans — 3.6%
JP Morgan Chase & Co.		39,200		1,893,360
Northern Trust Corp.		15,400		934,626
				2,827,986
Beverages — 0.9%
PepsiCo, Inc.		10,950		684,922
Broadcasting, Publishing & Printing — 3.7%
Comcast Corp. Special, Cl. A(a)		28,000		1,172,640
Time Warner, Inc.		77,100		1,679,238
				2,851,878
Chemicals — 1.8%
Monsanto Co.		26,700		1,402,551
Commercial Services — 2.1%
Akamai Technologies, Inc.(a) (b)		16,300		865,856
Fluor Corp.		9,300		759,345
				1,625,201
Communications — 3.6%
Network Appliance, Inc.(a)		30,750		1,207,860
Qualcomm, Inc.		41,500		1,568,285
				2,776,145
Computers & Information — 7.0%
Apple, Inc.(a)		38,050		3,228,161
Cisco Systems, Inc.(a)		81,300		2,221,929
				5,450,090
Computers & Office Equipment — 1.9%
Hewlett-Packard Co.		35,900		1,478,721
Cosmetics & Personal Care — 3.8%
The Procter & Gamble Co.		46,600		2,994,982
Electrical Equipment & Electronics — 5.0%
Advanced Micro Devices, Inc.(a)		28,700		584,045

	Number of Shares		Market Value
Broadcom Corp. Cl. A(a)		68,400	$	2,210,004
General Electric Co.		28,500		1,060,485
				3,854,534
Energy — 5.7%
BJ Services Co.		4,900		143,668
GlobalSantaFe Corp.		6,100		358,558
Halliburton Co.		83,500		2,592,675
Nabors Industries Ltd.(a) (b)		29,100		866,598
Schlumberger Ltd.		7,100		448,436
				4,409,935
Financial Services — 15.2%
Chicago Mercantile Exchange Holdings, Inc.		2,265		1,154,584
Credit Suisse Group, Sponsored ADR (Switzerland)		13,000		908,050
Franklin Resources, Inc.		16,500		1,817,805
The Goldman Sachs Group, Inc.		7,840		1,562,904
Janus Capital Group, Inc.		12,000		259,080
Lazard Ltd. Cl. A(b)		11,800		558,612
Legg Mason, Inc.		17,720		1,684,286
Merrill Lynch & Co., Inc.		24,300		2,262,330
NYSE Group, Inc.(a) (b)		8,350		811,620
The Charles Schwab Corp.		42,500		821,950
				11,841,221
Foods — 0.7%
Wrigley (Wm.) Jr. Co.		10,800		558,576
Industrial – Diversified — 2.0%
Corning, Inc.(a)		69,040		1,291,738
Textron, Inc.		3,200		300,064
				1,591,802
Information Retrieval Services — 5.9%
Google, Inc. Cl. A(a)		8,520		3,923,290
Yahoo!, Inc.(a)		26,800		684,472
				4,607,762
Insurance — 7.5%
American International Group, Inc.		29,200		2,092,472
WellPoint, Inc.(a)		47,300		3,722,037
				5,814,509
Lodging — 3.3%
Hilton Hotels Corp.		18,300		638,670
Marriott International, Inc. Cl. A		15,600		744,432

	Number of Shares		Market Value
Melco PBL Entertainment Ltd. ADR (Hong Kong)(a) (b)		22,802	$	484,771
Starwood Hotels & Resorts Worldwide, Inc.		11,700		731,250
				2,599,123
Pharmaceuticals — 11.4%
Alcon, Inc.(b)		20,450		2,285,696
Amgen, Inc.(a)		5,300		362,043
Genentech, Inc.(a)		25,190		2,043,665
Gilead Sciences, Inc.(a)		30,420		1,975,171
Medco Health Solutions, Inc.(a)		13,600		726,784
Teva Pharmaceutical Sponsored ADR (Israel)(b)		21,660		673,193
Wyeth		16,000		814,720
				8,881,272
Prepackaged Software — 1.2%
Microsoft Corp.		31,700		946,562
Restaurants — 2.0%
McDonald's Corp.		35,350		1,567,066
Retail — 4.2%
Kohl's Corp.(a)		20,000		1,368,600
Target Corp.		26,700		1,523,235
Tiffany & Co.		10,100		396,324
				3,288,159
TOTAL EQUITIES (Cost $74,270,367)				77,116,608
	Principal Amount
SHORT-TERM INVESTMENTS — 6.0%
Cash Equivalents — 4.8%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	92,376		92,376
American Beacon Money Market Fund(c)		31,903		31,903
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		135,011		135,011
Bank of America 5.270% 01/09/2007		71,059		71,059
Bank of America 5.310% 03/08/2007		71,059		71,059

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Large Cap Growth Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Bank of America 5.320% 02/16/2007	$	21,318	$	21,318
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		42,635		42,635
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		142,117		142,117
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		92,376		92,376
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		35,529		35,529
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		71,059		71,059
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		71,059		71,059
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		21,318		21,318
BGI Institutional Money Market Fund(c)		67,129		67,129
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		106,588		106,588
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		35,529		35,529
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		35,529		35,529
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		130,748		130,748
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		106,588		106,588
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		35,529		35,529
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		71,059		71,059
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		71,059		71,059
Dreyfus Cash Management Plus Money Market Fund(c)		25,382		25,382

	Principal Amount		Market Value
Federal Home Loan Bank Discount Note 5.145% 01/03/2007	$	11,901	$	11,901
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		18,543		18,543
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		71,059		71,059
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		28,423		28,423
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		106,588		106,588
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		106,588		106,588
Freddie Mac Discount Note 5.231% 01/23/2007		28,279		28,279
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		35,529		35,529
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		63,657		63,657
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		99,482		99,482
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		71,059		71,059
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		56,847		56,847
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		106,588		106,588
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		42,635		42,635
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		177,646		177,646
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		63,953		63,953
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		71,059		71,059

	Principal Amount		Market Value
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007	$	105,167	$	105,167
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		71,059		71,059
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		14,212		14,212
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		35,529		35,529
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		56,847		56,847
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		142,117		142,117
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		106,588		106,588
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		28,423		28,423
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		245,123		245,123
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		36,950		36,950
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		85,270		85,270
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		42,635		42,635
				3,713,715
Repurchase Agreement — 1.2%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		963,758		963,758
TOTAL SHORT-TERM INVESTMENTS (Cost $4,677,473)				4,677,473
TOTAL INVESTMENTS — 105.0% (Cost $78,947,840)(f)				81,794,081
Other Assets/ (Liabilities) — (5.0%)				(3,902,201	)
NET ASSETS — 100.0%			$	77,891,880

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Large Cap Growth Fund – Portfolio of Investments (Continued)

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $964,133. Collateralized by a U.S. Government Agency obligation with a rate of 7.625%, maturity date of 12/25/2026, and an aggregate market value, including accrued interest, of $1,011,946.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Concentrated Growth Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 99.0%
COMMON STOCK — 99.0%
Apparel, Textiles & Shoes — 2.5%
Nike, Inc. Cl. B		21,000	$	2,079,630
Commercial Services — 7.6%
Accenture Ltd. Cl. A		53,400		1,972,062
eBay, Inc.(a)		144,500		4,345,115
				6,317,177
Communications — 12.9%
Nokia Oyj Sponsored ADR (Finland)		224,300		4,557,776
Qualcomm, Inc.		109,900		4,153,121
XM Satellite Radio Holdings, Inc. Cl. A(a) (b)		138,100		1,995,545
				10,706,442
Computer Related Services — 4.2%
IAC/InterActiveCorp(a) (b)		92,400		3,433,584
Computers & Information — 7.3%
Cisco Systems, Inc.(a)		79,000		2,159,070
Dell, Inc.(a)		153,300		3,846,297
				6,005,367
Electrical Equipment & Electronics — 7.2%
General Electric Co.		108,300		4,029,843
Texas Instruments, Inc.		67,200		1,935,360
				5,965,203
Financial Services — 12.6%
Citigroup, Inc.		72,900		4,060,530
Countrywide Financial Corp.		105,000		4,457,250
The Goldman Sachs Group, Inc.		9,700		1,933,695
				10,451,475
Information Retrieval Services — 12.3%
Google, Inc. Cl. A(a)		9,650		4,443,632
Yahoo!, Inc.(a)		225,000		5,746,500
				10,190,132
Insurance — 9.6%
Aetna, Inc.		88,200		3,808,476
American International Group, Inc.		57,500		4,120,450
				7,928,926
Machinery & Components — 2.0%
Caterpillar, Inc.		27,300		1,674,309

	Number of Shares		Market Value
Medical Supplies — 1.9%
Boston Scientific Corp.(a)		92,600	$	1,590,868
Prepackaged Software — 4.1%
Electronic Arts, Inc.(a)		66,900		3,369,084
Retail — 10.3%
Amazon.com, Inc.(a) (b)		151,700		5,986,082
The Home Depot, Inc.		62,600		2,514,016
				8,500,098
Transportation — 1.9%
FedEx Corp.		14,600		1,585,852
Travel — 2.6%
Expedia, Inc.(a)		100,300		2,104,294
TOTAL EQUITIES (Cost $80,486,153)				81,902,441
	Principal Amount
SHORT-TERM INVESTMENTS — 14.9%
Cash Equivalents — 13.8%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	285,253		285,253
American Beacon Money Market Fund(c)		98,514		98,514
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		416,908		416,908
Bank of America 5.270% 01/09/2007		219,425		219,425
Bank of America 5.310% 03/08/2007		219,425		219,425
Bank of America 5.320% 02/16/2007		65,828		65,828
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		131,655		131,655
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		438,850		438,850
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		285,253		285,253
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		109,713		109,713

	Principal Amount		Market Value
Barclays Eurodollar Time Deposit 5.300% 01/03/2007	$	219,425	$	219,425
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		219,425		219,425
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		65,828		65,828
BGI Institutional Money Market Fund(c)		207,290		207,290
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		329,138		329,138
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		109,713		109,713
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		109,713		109,713
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		403,742		403,742
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		329,138		329,138
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		109,713		109,713
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		219,425		219,425
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		219,425		219,425
Dreyfus Cash Management Plus Money Market Fund(c)		78,378		78,378
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		36,751		36,751
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		57,260		57,260
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		219,425		219,425

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Concentrated Growth Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007	$	87,770	$	87,770
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		329,138		329,138
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		329,138		329,138
Freddie Mac Discount Note 5.231% 01/23/2007		87,326		87,326
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		109,713		109,713
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		196,570		196,570
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		307,195		307,195
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		219,425		219,425
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		175,540		175,540
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		329,138		329,138
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		131,655		131,655
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		548,563		548,563
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		197,483		197,483
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		219,425		219,425
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		324,749		324,749
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		219,425		219,425
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		43,885		43,885

	Principal Amount		Market Value
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007	$	109,713	$	109,713
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		175,540		175,540
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		438,851		438,851
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		329,138		329,138
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		87,770		87,770
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		756,935		756,935
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		114,101		114,101
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		263,310		263,310
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		131,655		131,655
				11,467,764
Repurchase Agreement — 1.1%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		895,002		895,002
TOTAL SHORT-TERM INVESTMENTS (Cost $12,362,766)				12,362,766
TOTAL INVESTMENTS — 113.9% (Cost $92,848,919)(f)				94,265,207
Other Assets/ (Liabilities) — (13.9%)				(11,531,342	)
NET ASSETS — 100.0%			$	82,733,865

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $895,350. Collateralized by a U.S. Government Agency obligation with a rate of 8.125%, maturity date of 03/25/2027, and an aggregate market value, including accrued interest, of $939,752.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Value Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 93.3%
COMMON STOCK — 93.3%
Aerospace & Defense �� 1.3%
Honeywell International, Inc.		44,538	$	2,014,899
Northrop Grumman Corp.		38,461		2,603,810
				4,618,709
Air Transportation — 0.8%
Southwest Airlines Co.		178,283		2,731,296
Automotive & Parts — 1.5%
BorgWarner, Inc.		21,541		1,271,350
Genuine Parts Co.		72,959		3,460,445
Winnebago Industries, Inc.(a)		16,778		552,164
				5,283,959
Banking, Savings & Loans — 10.5%
BB&T Corp.		62,883		2,762,450
Commerce Bancshares, Inc.		22,854		1,106,362
Fifth Third Bancorp(a)		176,561		7,226,642
Freddie Mac		93,660		6,359,514
Marshall and Ilsley Corp.		48,204		2,319,094
RAM Holdings Ltd.(b)		188,519		2,693,936
The South Financial Group, Inc.		89,267		2,373,609
SunTrust Banks, Inc.		70,598		5,962,001
Washington Federal, Inc.		191,775		4,512,466
Zions Bancorp		30,115		2,482,681
				37,798,755
Beverages — 4.3%
Anheuser-Busch Cos., Inc.		108,148		5,320,882
Coca-Cola Enterprises, Inc.		366,999		7,494,120
The Pepsi Bottling Group, Inc.		90,079		2,784,342
				15,599,344
Building Materials & Construction — 0.6%
Masco Corp.(a)		73,348		2,190,905
Chemicals — 2.9%
Compass Minerals International, Inc.		15,583		491,799
Du Pont (E.I.) de Nemours & Co.		8,825		429,866
International Flavors & Fragrances, Inc.		5,124		251,896
Minerals Technologies, Inc.		102,421		6,021,331
Nalco Holding Co.(b)		47,533		972,525

	Number of Shares		Market Value
Olin Corp.		55,277	$	913,176
Rohm & Haas Co.		23,330		1,192,630
				10,273,223
Commercial Services — 3.5%
ARAMARK Corp. Cl. B		174,809		5,847,361
Genesis Lease Ltd.-Ads(b)		40,104		942,444
Republic Services, Inc.		139,886		5,689,164
				12,478,969
Communications — 0.4%
CPI International, Inc.(b)		96,173		1,442,595
Computer Integrated Systems Design — 1.2%
NCI, Inc. Cl. A(b)		102,178		1,562,302
Synopsys, Inc.(b)		24,163		645,877
Teradyne, Inc.(a) (b)		134,391		2,010,489
				4,218,668
Computers & Information — 0.3%
Diebold, Inc.(a)		21,627		1,007,818
Computers & Office Equipment — 0.5%
Pitney Bowes, Inc.		37,163		1,716,559
Containers — 0.6%
Bemis Co., Inc.		59,395		2,018,242
Cosmetics & Personal Care — 2.3%
Kimberly-Clark Corp.		120,292		8,173,841
Electric Utilities — 7.2%
Ameren Corp.(a)		107,890		5,796,930
Consolidated Edison, Inc.		28,387		1,364,563
Portland General Electric Co.(a)		231,303		6,303,007
Puget Energy, Inc.		400,499		10,156,655
Wisconsin Energy Corp.		49,943		2,370,295
				25,991,450
Electrical Equipment & Electronics — 2.5%
Hubbell, Inc. Cl. B		67,404		3,047,335
Littelfuse, Inc.(b)		108,956		3,473,517
Vishay Intertechnology, Inc.(b)		170,887		2,313,810
				8,834,662
Energy — 5.4%
Apache Corp.		30,381		2,020,640
Equitable Resources, Inc.		227,342		9,491,528
Murphy Oil Corp.(a)		68,223		3,469,140
St. Mary Land & Exploration Co.(a)		44,378		1,634,885
Xcel Energy, Inc.		120,778		2,785,141
				19,401,334

	Number of Shares		Market Value
Entertainment & Leisure — 3.9%
International Speedway Corp. Cl. A		102,867	$	5,250,332
Speedway Motorsports, Inc.		224,245		8,611,008
				13,861,340
Financial Services — 2.0%
Annaly Capital Management, Inc. REIT		117,070		1,628,444
DCT Industrial Trust Inc. REIT		99,316		1,171,929
Education Realty Trust, Inc. REIT(a)		184,518		2,725,331
Nuveen Investments, Inc. Cl. A		31,713		1,645,270
				7,170,974
Foods — 4.8%
ConAgra Foods, Inc.		24,007		648,189
Diamond Foods, Inc.		225,186		4,280,786
General Mills, Inc.		47,046		2,709,850
Heinz (H. J.) Co.		165,137		7,432,816
Maple Leaf Foods, Inc.		188,283		2,005,102
				17,076,743
Forest Products & Paper — 1.7%
MeadWestvaco Corp.		80,533		2,420,822
Rayonier, Inc. REIT		21,606		886,926
Weyerhaeuser Co.		38,595		2,726,737
				6,034,485
Healthcare — 2.4%
Health Management Associates, Inc. Cl. A		172,697		3,645,634
National Dentex Corp.(b)		122,715		2,147,512
Universal Health Services, Inc. Cl. B		52,988		2,937,125
				8,730,271
Heavy Machinery — 0.8%
Altra Holdings, Inc.(a) (b)		217,730		3,059,106
Home Construction, Furnishings & Appliances — 0.7%
Whirlpool Corp.(a)		31,544		2,618,783
Household Products — 1.6%
The Clorox Co.		17,169		1,101,391
Hunter Douglas NV		28,049		2,249,772
Unilever NV NY Shares (Netherlands)		88,029		2,398,790
				5,749,953

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Industrial – Distribution — 0.7%
W.W. Grainger, Inc.		38,519	$	2,694,019
Insurance — 7.1%
Ambac Financial Group, Inc.		35,990		3,205,629
Aspen Insurance Holdings Ltd.		74,798		1,971,675
Chubb Corp.		52,352		2,769,944
Gallagher (Arthur J.) & Co.(a)		10,779		318,519
Genworth Financial, Inc. Cl. A		107,000		3,660,470
The Hartford Financial Services Group, Inc.		22,241		2,075,308
Horace Mann Educators Corp.		40,915		826,483
Marsh & McLennan Cos., Inc.		112,592		3,452,071
MGIC Investment Corp.(a)		115,827		7,243,821
				25,523,920
Manufacturing — 1.1%
Applied Materials, Inc.		103,396		1,907,656
AptarGroup, Inc.		32,365		1,910,830
				3,818,486
Medical Supplies — 5.4%
Beckman Coulter, Inc.		148,477		8,878,925
Dade Behring Holdings, Inc.		35,511		1,413,693
Steris Corp.		64,297		1,618,355
Symmetry Medical, Inc.(b)		553,708		7,657,782
				19,568,755
Metals & Mining — 2.4%
Hubbell, Inc.(a)		129,394		5,758,033
Newmont Mining Corp.		60,123		2,714,553
				8,472,586
Oil & Gas — 1.3%
WGL Holdings, Inc.		149,021		4,855,104
Pharmaceuticals — 1.5%
Invitrogen Corp.(b)		35,755		2,023,375
Watson Pharmaceutical, Inc.(a) (b)		135,869		3,536,670
				5,560,045
Prepackaged Software — 0.6%
DST Systems, Inc.(a) (b)		32,473		2,033,784
Real Estate — 0.5%
British Land Co. PLC		51,717		1,739,052
Restaurants — 1.5%
OSI Restaurant Partners, Inc.		133,746		5,242,843

	Number of Shares		Market Value
Retail — 1.9%
Dollar General Corp.		310,485	$	4,986,389
Lowe's Companies, Inc.		64,533		2,010,203
				6,996,592
Telephone Utilities — 3.9%
Commonwealth Telephone Enterprises, Inc.		190,127		7,958,716
Iowa Telecommunications Services, Inc.		309,349		6,097,269
				14,055,985
Toys, Games — 0.5%
Hasbro, Inc.		69,685		1,898,916
Transportation — 1.2%
Aegean Marine Petroleum Network, Inc.(a) (b)		74,062		1,214,617
Arctic Cat, Inc.		98,997		1,741,357
Heartland Express, Inc.		95,094		1,428,312
				4,384,286
TOTAL EQUITIES (Cost $316,037,610)				334,926,357
MUTUAL FUND — 1.9%
Financial Services — 1.9%
iShares S&P MidCap 400 Index Fund		87,526		7,019,585
TOTAL MUTUAL FUND (Cost $7,036,527)				7,019,585
TOTAL LONG TERM INVESTMENTS (Cost $323,074,137)				341,945,942
	Principal Amount
SHORT-TERM INVESTMENTS — 12.9%
Cash Equivalents — 8.5%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	760,691	$	760,691
American Beacon Money Market Fund(c)		262,709		262,709
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		1,111,778		1,111,778
Bank of America 5.270% 01/09/2007		585,147		585,147
Bank of America 5.310% 03/08/2007		585,147		585,147
Bank of America 5.320% 02/16/2007		175,545		175,545

	Principal Amount		Market Value
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007	$	351,088	$	351,088
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		1,170,293		1,170,293
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		760,691		760,691
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		292,573		292,573
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		585,146		585,146
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		585,146		585,146
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		175,544		175,544
BGI Institutional Money Market Fund(c)		552,784		552,784
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		877,719		877,719
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		292,573		292,573
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		292,573		292,573
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		1,076,669		1,076,669
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		877,719		877,719
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		292,573		292,573
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		585,146		585,146
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		585,146		585,146
Dreyfus Cash Management Plus Money Market Fund(c)		209,013		209,013
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		98,005		98,005

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Value Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Federal Home Loan Bank Discount Note 5.207% 01/19/2007	$	152,695	$	152,695
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		585,146		585,146
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		234,058		234,058
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		877,719		877,719
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		877,719		877,719
Freddie Mac Discount Note 5.231% 01/23/2007		232,873		232,873
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		292,573		292,573
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		524,199		524,199
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		819,205		819,205
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		585,146		585,146
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		468,117		468,117
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		877,719		877,719
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		351,088		351,088
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		1,462,866		1,462,866
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		526,632		526,632
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		585,146		585,146

	Principal Amount		Market Value
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007	$	866,016	$	866,016
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		585,146		585,146
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		117,029		117,029
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		292,573		292,573
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		468,117		468,117
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		1,170,292		1,170,292
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		877,719		877,719
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		234,058		234,058
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		2,018,536		2,018,536
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		304,276		304,276
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		702,175		702,175
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		351,088		351,088
				30,581,344
Repurchase Agreement — 4.4%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		15,604,256		15,604,256
TOTAL SHORT-TERM INVESTMENTS (Cost $46,185,600)				46,185,600
TOTAL INVESTMENTS — 108.1% (Cost $369,259,737)(f)				388,131,542
Other Assets/ (Liabilities) — (8.1%)				(29,225,534	)
NET ASSETS — 100.0%			$	358,906,008

Notes to Portfolio of Investments

REIT - Real Estate Investment Trust

(a) Denotes all or a portion of security on loan. (Note 2).

(b) Non-income producing security.

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $15,610,325. Collateralized by a U.S. Government Agency obligation with a rate of 4.586%, maturity date of 09/01/2034, and aggregate market value, including accrued interest, of $16,384,469.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Growth Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 97.1%
COMMON STOCK — 97.1%
Advertising — 4.0%
aQuantive, Inc.(a)		57,600	$	1,420,416
Catalina Marketing Corp.		56,000		1,540,000
Clear Channel Outdoor Holdings, Inc. Cl. A(a)		40,700		1,135,937
Getty Images, Inc.(a)		1,700		72,794
Harte-Hanks, Inc.		1,800		49,878
Lamar Advertising Co.(a) (b)		62,200		4,067,258
Monster Worldwide, Inc.(a)		56,200		2,621,168
Omnicom Group, Inc.		2,500		261,350
WPP Group PLC Sponsored ADR (United Kingdom)		3,400		230,316
				11,399,117
Aerospace & Defense — 2.3%
Alliant Techsystems, Inc.(a) (b)		22,800		1,782,732
Empresa Brasileira de Aeronautica SA ADR (Brazil)(b)		3,300		136,653
Rockwell Collins, Inc.		66,100		4,183,469
Spirit AeroSystems Holdings, Inc. Cl. A(a)		12,600		421,722
				6,524,576
Air Transportation — 1.0%
SkyWest, Inc.		10,100		257,651
Southwest Airlines Co.		168,300		2,578,356
				2,836,007
Apparel, Textiles & Shoes — 0.2%
Coach, Inc.(a)		8,200		352,272
Ross Stores, Inc.		3,500		102,550
Urban Outfitters, Inc.(a) (b)		3,500		80,605
				535,427
Automotive & Parts — 0.9%
Harley-Davidson, Inc.(b)		5,100		359,397
Oshkosh Truck Corp.		45,000		2,178,900
Winnebago Industries, Inc.(b)		2,500		82,275
				2,620,572
Banking, Savings & Loans — 1.0%
City National Corp.		1,000		71,200
First Horizon National Corp.		1,400		58,492
Investors Financial Services Corp.		34,200		1,459,314
Northern Trust Corp.		6,400		388,416
State Street Corp.		2,800		188,832

	Number of Shares		Market Value
SVB Financial Group(a)		12,200	$	568,764
Synovus Financial Corp.		4,800		147,984
UCBH Holdings, Inc.		4,200		73,752
				2,956,754
Beverages — 0.3%
Cott Corp.(a) (b)		63,000		901,530
Broadcasting, Publishing & Printing — 0.1%
Citadel Broadcasting Corp.		6,200		61,752
The McGraw-Hill Companies, Inc.		1,300		88,426
Meredith Corp.		1,100		61,985
Salem Communications Corp. Cl. A		4,900		58,555
The Scripps (E.W.) Co. Cl. A		1,600		79,904
				350,622
Chemicals — 0.1%
Symyx Technologies, Inc.(a)		2,600		56,134
The Valspar Corp.		4,000		110,560
				166,694
Commercial Services — 7.0%
Aercap Holdings Nv(a)		28,100		651,358
American Reprographics Co.(a)		3,200		106,592
Apollo Group, Inc. Cl. A(a) (b)		1,400		54,558
Block (H&R), Inc.(b)		2,600		59,904
Cintas Corp.		3,900		154,869
The Corporate Executive Board Co.(b)		2,800		245,560
Decode Genetics, Inc.(a) (b)		9,500		43,035
DeVry, Inc.		2,900		81,200
Dun & Bradstreet Corp.(a)		1,700		140,743
Ecolab, Inc.		4,400		198,880
Equifax, Inc.		2,400		97,440
Fastenal Co.(b)		42,800		1,535,664
Fluor Corp.(b)		3,200		261,280
Gen-Probe, Inc.(a)		22,800		1,194,036
Global Payments, Inc.		32,900		1,523,270
Iron Mountain, Inc.(a) (b)		52,900		2,186,886
ITT Educational Services, Inc.(a)		1,400		92,918
Laureate Education, Inc.(a)		24,000		1,167,120
LECG Corp.(a)		3,000		55,440
Manpower, Inc.		45,600		3,416,808
MoneyGram International, Inc.(b)		52,000		1,630,720
Moody's Corp.		2,900		200,274
Paychex, Inc.		8,100		320,274

	Number of Shares		Market Value
QIAGEN NV(a) (b)		30,900	$	467,517
Quest Diagnostics		2,600		137,800
Resources Connection, Inc.(a)		12,000		382,080
Ritchie Bros. Auctioneers, Inc.		3,600		192,744
Robert Half International, Inc.(b)		35,300		1,310,336
SAIC, Inc.(a) (b)		26,400		469,656
Stericycle, Inc.(a)		2,700		203,850
United Rentals, Inc.(a) (b)		54,700		1,391,021
				19,973,833
Communications — 5.9%
American Tower Corp. Cl. A(a)		87,300		3,254,544
Ciena Corp.(a)		27,400		759,254
Crown Castle International Corp.(a)		110,900		3,582,070
EchoStar Communications Corp. Cl. A(a)		24,300		924,129
Harris Corp.		54,000		2,476,440
Rogers Communications, Inc. Cl. B(b)		52,200		3,111,120
SBA Communications Corp. Cl. A(a)		35,700		981,750
XM Satellite Radio Holdings, Inc. Cl. A(a) (b)		121,000		1,748,450
				16,837,757
Computer & Other Data Processing Service — 0.3%
Baidu.com ADR (China)(a) (b)		1,300		146,536
IHS, Inc. Cl. A(a)		20,300		801,444
				947,980
Computer Integrated Systems Design — 2.5%
Autodesk, Inc.(a)		40,500		1,638,630
Avid Technology, Inc.(a) (b)		38,600		1,438,236
Cadence Design Systems, Inc.(a) (b)		3,600		64,476
Cogent, Inc.(a) (b)		56,400		620,964
F5 Networks, Inc.(a)		1,300		96,473
Jack Henry & Associates, Inc.		53,300		1,140,620
National Instruments Corp.		2,400		65,376
Synopsys, Inc.(a)		3,400		90,882
Teradyne, Inc.(a) (b)		133,200		1,992,672
Websense, Inc.(a)		4,500		102,735
				7,251,064

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Computer Programming Services — 1.1%
Cognizant Technology Solutions Corp. Cl. A(a)		3,200	$	246,912
VeriSign, Inc.(a)		123,800		2,977,390
				3,224,302
Computer Related Services — 1.7%
CACI International, Inc. Cl. A(a)		28,300		1,598,950
Checkfree Corp.(a) (b)		48,700		1,955,792
CNET Networks, Inc.(a) (b)		140,300		1,275,327
				4,830,069
Computers & Information — 3.2%
CDW Corp.(b)		1,200		84,384
Cognos, Inc.(a)		1,700		72,182
Comverse Technology, Inc.(a)		32,000		675,520
International Game Technology		72,900		3,367,980
Jabil Circuit, Inc.		76,100		1,868,255
Satyam Computer Services Ltd. ADR (India)(b)		6,400		153,664
Seagate Technology		16,000		424,000
Symbol Technologies, Inc.		153,000		2,285,820
Zebra Technologies Corp. Cl. A(a)		1,900		66,101
				8,997,906
Containers — 0.0%
Sealed Air Corp.		900		58,428
Cosmetics & Personal Care — 0.1%
Avon Products, Inc.(b)		8,000		264,320
Data Processing & Preparation — 0.1%
FactSet Research Systems, Inc.		2,500		141,200
Fiserv, Inc.(a)		1,300		68,146
SEI Investments Co.		1,300		77,428
				286,774
Electric Utilities — 0.1%
AES Corp.(a)		14,000		308,560
Electrical Equipment & Electronics — 9.5%
Altera Corp.(a)		115,800		2,278,944
Ametek, Inc.		97,700		3,110,768
Analog Devices, Inc.		9,400		308,978
Broadcom Corp. Cl. A(a) (b)		6,000		193,860
Cymer, Inc.(a)		1,400		61,530
Dolby Laboratories, Inc. Cl. A(a)		39,400		1,222,188
Fairchild Semiconductor International, Inc.(a)		36,600		615,246
First Solar, Inc.(a)		20,200		601,960
Flextronics International Ltd.(a)		130,300		1,495,844

	Number of Shares		Market Value
FLIR Systems, Inc.(a) (b)		59,200	$	1,884,336
Garmin Ltd.(b)		20,400		1,135,464
Gentex Corp.		3,900		60,684
Integrated Device Technology, Inc.(a)		6,100		94,428
Intersil Corp. Cl. A(b)		84,300		2,016,456
KLA-Tencor Corp.(b)		2,300		114,425
Linear Technology Corp.(b)		10,600		321,392
Marvell Technology Group Ltd.(a) (b)		133,700		2,565,703
Maxim Integrated Products, Inc.(b)		9,400		287,828
MEMC Electronic Materials, Inc.(a)		3,500		136,990
Microchip Technology, Inc.		56,500		1,847,550
National Semiconductor Corp.		70,000		1,589,000
PMC-Sierra, Inc.(a) (b)		165,900		1,113,189
QLogic Corp.(a)		3,600		78,912
Semtech Corp.(a)		4,000		52,280
Silicon Laboratories, Inc.(a)		5,600		194,040
Spansion LLC Cl. A(a)		44,300		658,298
SunPower Corp. Cl. A(a) (b)		19,600		728,532
Xilinx, Inc.(b)		92,000		2,190,520
				26,959,345
Energy — 4.5%
Bill Barrett Corp.(a) (b)		2,700		73,467
BJ Services Co.		102,500		3,005,300
CNX Gas Corp.(a)		8,900		226,950
Compton Petroleum Corp.(a)		4,800		43,776
Core Laboratories NV(a) (b)		1,300		105,300
Diamond Offshore Drilling, Inc.(b)		1,500		119,910
EOG Resources, Inc.		48,000		2,997,600
Mariner Energy, Inc.(a)		4,200		82,320
Murphy Oil Corp.		36,400		1,850,940
Nabors Industries Ltd.(a) (b)		3,700		110,186
TETRA Technologies, Inc.(a)		24,100		616,478
Ultra Petroleum Corp. (a)		1,900		90,725
Weatherford International Ltd.(a)		4,600		192,234
The Williams Cos., Inc.		8,700		227,244
XTO Energy, Inc.		66,600		3,133,530
				12,875,960
Entertainment & Leisure — 0.4%
Brunswick Corp.		1,900		60,610
DreamWorks Animation SKG, Inc. Cl. A(a) (b)		32,800		967,272
Shuffle Master, Inc.(a) (b)		5,900		154,580

	Number of Shares		Market Value
WMS Industries, Inc.(a)		2,400	$	83,664
				1,266,126
Financial Services — 4.1%
Affiliated Managers Group, Inc.(a) (b)		800		84,104
BlackRock, Inc. Cl. A(b)		1,400		212,660
CBOT Holdings, Inc. Cl. A(a) (b)		2,300		348,381
Chicago Mercantile Exchange Holdings, Inc.		700		356,825
E*TRADE Financial Corp.(a)		83,800		1,878,796
East West Bancorp, Inc.		2,400		85,008
Eaton Vance Corp.		65,600		2,165,456
Federated Investors, Inc. Cl. B		2,100		70,938
Fidelity National Information Services, Inc.		32,500		1,302,925
IntercontinentalExchange, Inc.(a)		12,400		1,337,960
International Securities Exchange, Inc.		1,700		79,543
Janus Capital Group, Inc.		4,700		101,473
Lazard Ltd. Cl. A(b)		2,900		137,286
Legg Mason, Inc.		15,100		1,435,255
Nuveen Investments, Inc. Cl. A		33,000		1,712,040
Nymex Holdings Inc.(a) (b)		700		86,807
optionsXpress Holdings, Inc.		2,600		58,994
The Charles Schwab Corp.		4,100		79,294
TD Ameritrade Holding Corp.		4,400		71,192
				11,604,937
Foods — 0.4%
The Hershey Co.(b)		4,000		199,200
McCormick & Co., Inc.		2,700		104,112
Panera Bread Co. Cl. A(a) (b)		7,700		430,507
Wm. Wrigley Jr. Co.		4,800		248,256
				982,075
Healthcare — 5.4%
Community Health Systems, Inc.(a) (b)		43,000		1,570,360
Coventry Health Care, Inc.(a)		19,900		995,995
DaVita, Inc.(a)		18,600		1,057,968
Elan Corp. PLC Sponsored ADR (Ireland)(a) (b)		125,300		1,848,175
Express Scripts, Inc.(a)		23,100		1,653,960
Health Management Associates, Inc. Cl. A(b)		67,800		1,431,258
Health Net, Inc.(a)		32,600		1,586,316

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Healthways, Inc.(a) (b)		2,400	$	114,504
Human Genome Sciences, Inc.(a) (b)		50,000		622,000
Humana, Inc.(a)		2,800		154,868
Laboratory Corp. of America Holdings(a) (b)		13,800		1,013,886
LifePoint Hospitals, Inc.(a)		1,800		60,660
Lincare Holdings, Inc.(a) (b)		3,600		143,424
Manor Care, Inc.(b)		65,000		3,049,800
				15,303,174
Heavy Construction — 0.0%
Foster Wheeler Ltd.(a)		1,800		99,252
Heavy Machinery — 0.7%
Cameron International Corp.(a)		36,800		1,952,240
Home Construction, Furnishings & Appliances — 1.2%
Centex Corp.(b)		2,000		112,540
Harman International Industries, Inc.		27,900		2,787,489
HNI Corp.(b)		2,100		93,261
KB Home		1,800		92,304
Lennar Corp. Cl. A		2,200		115,412
Meritage Homes Corp.(a)		1,100		52,492
Pulte Homes, Inc.		2,400		79,488
Toll Brothers, Inc.(a) (b)		2,300		74,129
				3,407,115
Household Products — 0.0%
The Clorox Co.(b)		1,100		70,565
Industrial – Distribution — 0.1%
Grainger (W.W.), Inc.		2,800		195,832
Industrial – Diversified — 1.1%
Danaher Corp.		15,900		1,151,796
ITT Industries, Inc.		32,500		1,846,650
				2,998,446
Information Retrieval Services — 1.6%
ChoicePoint, Inc.(a)		46,600		1,835,108
Digital River, Inc.(a)		2,600		145,054
Juniper Networks, Inc.(a)		127,000		2,405,380
Sina Corp.(a) (b)		2,800		80,360
				4,465,902
Insurance — 2.0%
Ambac Financial Group, Inc.		700		62,349
Arch Capital Group Ltd.(a)		1,900		128,459
Assurant, Inc.(b)		31,500		1,740,375
Axis Capital Holdings Ltd.		55,400		1,848,698
Brown & Brown, Inc.		4,000		112,840

	Number of Shares		Market Value
Cigna Corp.		1,100	$	144,727
Markel Corp.(a)		200		96,020
Marsh & McLennan Cos., Inc.		3,000		91,980
MBIA, Inc.		1,000		73,060
OneBeacon Insurance Group Ltd.(a)		3,200		89,600
Principal Financial Group, Inc.		20,000		1,174,000
RenaissanceRe Holdings Ltd.		1,500		90,000
Willis Group Holdings Ltd.		2,100		83,391
				5,735,499
Lodging — 1.2%
Boyd Gaming Corp.		2,400		108,744
Choice Hotels International, Inc.		3,800		159,980
Hilton Hotels Corp.		9,500		331,550
Marriott International, Inc. Cl. A		7,400		353,128
Melco PBL Entertainment Ltd. ADR (Hong Kong)(a) (b)		900		19,134
Starwood Hotels & Resorts Worldwide, Inc.		3,900		243,750
Station Casinos, Inc.(b)		900		73,503
Wynn Resorts Ltd.(b)		24,000		2,252,400
				3,542,189
Machinery & Components — 3.9%
FMC Technologies, Inc.(a)		43,000		2,650,090
Graco, Inc.(b)		4,300		170,366
Grant Prideco, Inc.(a)		7,000		278,390
IDEX Corp.		1,500		71,115
Joy Global, Inc.		3,200		154,688
Pall Corp.		2,500		86,375
Roper Industries, Inc.		85,500		4,295,520
Smith International, Inc.(b)		80,600		3,310,242
				11,016,786
Manufacturing — 0.7%
American Standard Cos., Inc.		38,300		1,756,055
Avery Dennison Corp.		1,700		115,481
Lam Research Corp.(a)		1,900		96,178
Millipore Corp.(a) (b)		1,500		99,900
				2,067,614
Medical Supplies — 3.3%
Allergan, Inc.		2,700		323,298
American Medical Systems Holdings, Inc.(a) (b)		3,800		70,376
ArthoCare Corp.(a) (b)		1,300		51,896
Bard (C.R.), Inc.(b)		11,400		945,858
Becton, Dickinson & Co.		1,300		91,195
Dade Behring Holdings, Inc.		2,000		79,620
Dentsply International, Inc.		2,500		74,625

	Number of Shares		Market Value
Edwards Lifesciences Corp.(a)		50,200	$	2,361,408
Henry Schein, Inc.(a) (b)		2,300		112,654
Hologic, Inc.(a) (b)		1,200		56,736
II-VI, Inc.(a)		3,500		97,790
Integra LifeSciences Holdings Corp.(a) (b)		1,400		59,626
Kyphon, Inc.(a) (b)		1,800		72,720
Patterson Cos., Inc.(a)		1,800		63,918
Resmed, Inc.(a)		17,500		861,350
Respironics, Inc.(a)		2,900		109,475
St. Jude Medical, Inc.(a)		47,400		1,732,944
Techne Corp.(a)		3,600		199,620
Thermo Fisher Scientific, Inc.(a)		33,200		1,503,628
Varian Medical Systems, Inc.(a)		3,500		166,495
Ventana Medical Systems, Inc.(a)		1,100		47,333
Waters Corp.(a)		3,500		171,395
Zimmer Holdings, Inc.(a) (b)		1,900		148,922
				9,402,882
Metals & Mining — 1.9%
CONSOL Energy, Inc.		75,200		2,416,176
Foundation Coal Holdings, Inc.		27,400		870,224
Newmont Mining Corp.		14,700		663,705
Precision Castparts Corp.(b)		4,400		344,432
Teck Cominco Ltd. Cl. B		15,200		1,145,320
				5,439,857
Pharmaceuticals — 7.4%
Alkermes, Inc.(a)		59,500		795,515
Amylin Pharmaceuticals, Inc.(a) (b)		10,300		371,521
Atherogenics, Inc.(a) (b)		5,300		52,523
Barr Pharmaceuticals, Inc.(a)		46,000		2,305,520
Celgene Corp.(a) (b)		6,900		396,957
Cephalon, Inc.(a) (b)		50,800		3,576,828
Charles River Laboratories International, Inc.(a)		1,600		69,200
Genzyme Corp.(a)		1,500		92,370
Gilead Sciences, Inc.(a)		14,700		954,471
Invitrogen Corp.(a)		800		45,272
Martek Biosciences Corp.(a) (b)		2,500		58,350
Medco Health Solutions, Inc.(a)		5,300		283,232
MedImmune, Inc.(a) (b)		95,200		3,081,624
Millennium Pharmaceuticals, Inc.(a) (b)		6,200		67,580
Nektar Therapeutics(a) (b)		3,500		53,235

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Neurocrine Biosciences, Inc.(a) (b)		3,400	$	35,428
Omnicare, Inc.(b)		46,900		1,811,747
OSI Pharmaceuticals, Inc.(a) (b)		21,000		734,580
PDL BioPharma, Inc.(a) (b)		34,600		696,844
Sepracor, Inc.(a)		33,600		2,069,088
Sigma-Aldrich Corp.(b)		800		62,176
Theravance, Inc.(a)		25,800		796,962
Valeant Pharmaceuticals International		70,900		1,222,316
Vertex Pharmaceuticals, Inc.(a)		40,000		1,496,800
				21,130,139
Prepackaged Software — 4.4%
Activision, Inc.(a) (b)		9,400		162,056
Adobe Systems, Inc.(a)		35,600		1,463,872
Check Point Software Technologies Ltd.(a)		3,400		74,528
Citrix Systems, Inc.(a)		3,800		102,790
DST Systems, Inc.(a) (b)		48,400		3,031,292
Electronic Arts, Inc.(a)		5,500		276,980
Fair Isaac Corp.		1,500		60,975
Hyperion Solutions Corp.(a)		1,900		68,286
Intuit, Inc.(a)		39,500		1,205,145
McAfee, Inc.(a)		42,700		1,211,826
NAVTEQ Corp.(a) (b)		64,300		2,248,571
Red Hat, Inc.(a) (b)		91,200		2,097,600
Salesforce.com, Inc.(a)		11,500		419,175
THQ, Inc.(a) (b)		3,000		97,560
				12,520,656
Restaurants — 1.1%
The Cheesecake Factory(a)		45,400		1,116,840
P.F. Chang's China Bistro, Inc.(a) (b)		18,000		690,840
Tim Hortons, Inc.		43,700		1,265,552
				3,073,232
Retail — 6.4%
Advance Auto Parts, Inc.		46,000		1,635,760
Amazon.com, Inc.(a) (b)		79,800		3,148,908
Bed Bath & Beyond, Inc.(a) (b)		53,400		2,034,540
Best Buy Co., Inc.		28,600		1,406,834
Carmax, Inc.(a) (b)		32,600		1,748,338
Dick's Sporting Goods, Inc.(a) (b)		2,200		107,778
Dollar General Corp.		4,900		78,694
Family Dollar Stores, Inc.		3,700		108,521
Fred's, Inc.(b)		5,300		63,812
Men's Wearhouse, Inc.		2,100		80,346

	Number of Shares		Market Value
MSC Industrial Direct Co. Cl. A		8,100	$	317,115
O'Reilly Automotive, Inc.(a) (b)		58,800		1,885,128
Petsmart, Inc.		89,300		2,577,198
Shoppers Drug Mart Corp. CAD27,000	1,167,146
Staples, Inc.		5,000		133,500
Tiffany & Co.		6,400		251,136
The TJX Cos., Inc.		10,100		287,648
Tractor Supply Co.(a)		1,900		84,949
Williams-Sonoma, Inc.(b)		36,600		1,150,704
				18,268,055
Retail – Grocery — 0.2%
Whole Foods Market, Inc.(b)		12,000		563,160
Telecommunications — 0.5%
Time Warner Telecom, Inc. Cl. A(a) (b)		75,800		1,510,694
Telephone Utilities — 1.7%
ADTRAN, Inc.		31,500		715,050
Amdocs Ltd.(a) (b)		54,400		2,108,000
Leap Wireless International, Inc.(a)		30,500		1,813,835
NeuStar, Inc. Cl. A(a) (b)		3,800		123,272
NII Holdings, Inc. Cl. B(a) (b)		3,200		206,208
				4,966,365
Transportation — 1.5%
Discovery Holding Co. Cl. A(a)		88,500		1,423,965
Expeditors International of Washington, Inc.		5,200		210,600
Landstar System, Inc.		5,600		213,808
Robinson (C.H.) Worldwide, Inc.(b)		4,400		179,916
Royal Caribbean Cruises Ltd.		3,100		128,278
Thor Industries, Inc.(b)		2,200		96,778
UTI Worldwide, Inc.		69,500		2,078,050
				4,331,395
TOTAL EQUITIES (Cost $274,655,807)				277,021,784
	Principal Amount
SHORT-TERM INVESTMENTS — 26.4%
Cash Equivalents — 23.5%(d)
Abbey National PLC Eurodollar Overnight 5.280% 01/05/2007	$	1,664,194		1,664,194

	Principal Amount		Market Value
American Beacon Funds Money Market Fund(c)	$	574,740	$	574,740
BancoBilbao Vizcaya Argentaria SA Eurodollar Overnight 5.310% 01/03/2007		2,432,287		2,432,287
Bank of America 5.310% 03/08/2007		1,280,151		1,280,151
Bank of America Bank Note 5.270% 01/09/2007		1,280,151		1,280,151
Bank of America Bank Note 5.320% 02/16/2007		384,046		384,046
Bank Of Nova Scotia Eurodollar Term 5.290% 01/30/2007		768,091		768,091
Bank Of Nova Scotia Eurodollar Term 5.290% 02/06/2007		2,560,303		2,560,303
Bank Of Nova Scotia Eurodollar Term 5.300% 02/27/2007		1,664,196		1,664,196
The Bank of the West Eurodollar Term 5.285% 01/17/2007		640,076		640,076
Barclays Eurodollar Overnight 5.300% 01/03/2007		1,280,151		1,280,151
Barclays Eurodollar Term 5.310% 02/20/2007		1,280,151		1,280,151
Barclays Eurodollar Term 5.320% 02/13/2007		384,046		384,046
BGI Institutional Money Market Fund Money Market Fund(c)		1,209,350		1,209,350
Calyon Eurodollar Term 5.290% 03/05/2007		1,920,227		1,920,227
Calyon Eurodollar Term 5.310% 02/16/2007		640,076		640,076
Calyon Eurodollar Term 5.310% 02/22/2007		640,076		640,076
Canadian Imperial Bank of Commerce Eurodollar Term 5.310% 01/29/2007		2,355,478		2,355,478
Citigroup Eurodollar Term 5.305% 03/05/2007		1,920,227		1,920,227
Citigroup Eurodollar Term 5.310% 03/16/2007		640,076		640,076
Commonwealth Bank of Australia Domestic Fixed CP 5.291% 01/08/2007		1,280,151		1,280,151

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Mid Cap Growth Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Dexia Group Eurodollar Term 5.285% 01/16/2007	$	1,280,151	$	1,280,151
Dreyfus Cash Management Plus Fund Money Market Fund(c)		457,267		457,267
Federal Home Loan Bank Agency Discount Note 5.207% 01/19/2007		334,058		334,058
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		214,410		214,410
First Tennessee National Corporation Eurodollar Term 5.290% 01/18/2007		1,280,151		1,280,151
Fortis Bank Eurodollar Overnight 5.295% 01/02/2007		512,061		512,061
Fortis Bank Eurodollar Term 5.300% 01/24/2007		1,920,227		1,920,227
Fortis Bank Eurodollar Term 5.300% 01/26/2007		1,920,227		1,920,227
Freddie Mac Agency Discount Note 5.231% 01/23/2007		509,467		509,467
General Electric Capital Corporation Domestic Fixed CP 5.296% 01/26/2007		640,076		640,076
Goldman Sachs Financial Square Prime Obligations Fund Money Market Fund(c)		1,146,813		1,146,813
HBOS Halifax Bank of Scotland Eurodollar Term 5.300% 01/25/2007		1,280,151		1,280,151
HBOS Halifax Bank of Scotland Eurodollar Term 5.305% 03/14/2007		1,024,121		1,024,121
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		1,792,211		1,792,211
Lloyds TSB Bank Eurodollar Term 5.300% 02/26/2007		1,920,227		1,920,227

	Principal Amount		Market Value
Marshall & Ilsley Bank Eurodollar Term 5.300% 03/19/2007	$	768,091	$	768,091
Rabobank Nederland Eurodollar Overnight 5.250% 01/02/2007		3,200,377		3,200,377
Rabobank Nederland Eurodollar Term 5.300% 03/05/2007		1,152,136		1,152,136
Royal Bank of Canada Eurodollar Term 5.310% 02/14/2007		1,280,151		1,280,151
Royal Bank of Canada Eurodollar Term 5.310% 02/15/2007		1,894,624		1,894,624
Royal Bank of Scotland Eurodollar Term 5.280% 01/11/2007		1,280,151		1,280,151
Royal Bank of Scotland Eurodollar Term 5.290% 01/16/2007		256,030		256,030
Royal Bank of Scotland Eurodollar Term 5.290% 02/09/2007		640,076		640,076
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		1,024,121		1,024,121
Societe Generale Eurodollar Overnight 5.313% 01/02/2007		512,061		512,061
Societe Generale Eurodollar Term 5.270% 01/19/2007		2,560,303		2,560,303
Societe Generale Eurodollar Term 5.290% 02/01/2007		1,920,227		1,920,227
Svenska Handlesbanken Eurodollar Overnight 5.250% 01/02/2007		4,416,044		4,416,044
UBS AG Eurodollar Overnight 5.290% 01/02/2007		665,679		665,679
UBS AG Eurodollar Overnight 5.300% 01/04/2007		1,536,181		1,536,181
UBS AG Eurodollar Overnight 5.300% 01/05/2007		768,091		768,091
				66,904,205

	Principal Amount		Market Value
Repurchase Agreement — 2.9%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)	$	8,321,302	$	8,321,302
TOTAL SHORT-TERM INVESTMENTS (Cost $75,225,507)				75,225,507
TOTAL INVESTMENTS — 123.5% (Cost $349,881,314)(f)				352,247,291
Other Assets/ (Liabilities) — (23.5%)				(67,098,775	)
NET ASSETS — 100.0%			$	285,148,516

Notes to Portfolio of Investments

ADR - American Depository Receipt
(a)				Non-income producing security.
(b)				Denotes all or a portion of security on loan. (Note 2).
(c)				Amount represents shares owned of the fund.
(d)				Represents investments of security lending collateral. (Note 2).
(e)				Maturity value of $8,324,538. Collateralized by a US Government Obligation with a rate of 7.625%, maturity date of 01/25/2030, and an aggregate market value, including accrued interest, of $8,737,367.
(f)				See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Small Cap Value Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 99.0%
COMMON STOCK — 99.0%
Advertising — 0.2%
Catalina Marketing Corp.		13,600	$	374,000
Aerospace & Defense — 0.7%
Sequa Corp. Cl. A(a)		8,800		1,012,528
Triumph Group, Inc.(b)		7,900		414,197
				1,426,725
Agribusiness — 0.3%
Delta & Pine Land Co.		13,700		554,165
Apparel, Textiles & Shoes — 3.3%
Brown Shoe Co., Inc.		41,110		1,962,591
Jones Apparel Group, Inc.		30,536		1,020,818
Kellwood Co.(b)		74,838		2,433,732
Perry Ellis International, Inc.(a)		27,570		1,130,370
Syms Corp.(a)		16,585		330,207
				6,877,718
Automotive & Parts — 2.1%
Asbury Automotive Group, Inc.		40,811		961,507
AutoNation, Inc.(a)		8,500		181,220
Group 1 Automotive, Inc.		16,900		874,068
Sonic Automotive, Inc.		77,200		2,241,888
				4,258,683
Banking, Savings & Loans — 14.4%
Bank Mutual Corp.		63,825		772,921
Bankfinancial Corp.		10,500		187,005
Bankunited Financial Corp. Cl. A		16,400		458,544
Banner Corp.		4,800		212,832
Capitol Bancorp Ltd.		11,500		531,300
Cardinal Financial Corp.		20,000		205,000
Cascade Bancorp(b)		36,698		1,138,739
Cathay General Bancorp		14,460		499,015
Central Pacific Financial Corp.		32,700		1,267,452
Chemical Financial Corp.		6,100		203,130
Credit Acceptance Corp.(a)		3,819		127,287
Dollar Financial Corp.(a)		6,800		189,448
Downey Financial Corp.(b)		40,198		2,917,571
First Indiana Corp.		13,400		339,824
First Merchants Corp.		6,100		165,859
First Niagara Financial Group, Inc.		56,600		841,076
First Regional Bancorp/Los Angeles, CA(a)		15,700		535,213
First South Bancorp, Inc.(b)		162		5,166
First State Bancorp		8,100		200,475

	Number of Shares		Market Value
Frontier Financial Corp.(b)		34,450	$	1,006,974
Greater Bay Bancorp		50,714		1,335,300
Hanmi Financial Corp.		121,419		2,735,570
Heartland Financial USA, Inc.(b)		14,214		410,074
Horizon Financial Corp.		87		2,093
Intervest Bancshares Corp.(a)		18,835		648,112
Mid-State Bancshares		15,500		564,045
Northern Empire Bancshares(a)		6,100		180,194
Partners Trust Financial Group, Inc.		86,000		1,001,040
PFF Bancorp, Inc.		14,000		483,140
Placer Sierra Bancshares		38,100		905,637
Preferred Bank/Los Angeles, CA		29,183		1,753,606
Provident Financial Services, Inc.		66,900		1,212,897
Seacoast Banking Corp. of Florida(b)		5,700		141,360
Shore Bancshares, Inc.		376		11,340
Southwest Bancorp, Inc.		10,500		292,530
Sterling Bancshares, Inc.		19,350		251,937
TierOne Corp.		15,300		483,633
TriCo Bancshares		1,153		31,373
Trustmark Corp.		36,800		1,203,728
Umpqua Holdings Corp.		69,938		2,058,275
United Bankshares, Inc.		17,500		676,375
World Acceptance Corp.(a)		36,478		1,712,642
				29,899,732
Beverages — 0.2%
MGP Ingredients, Inc.(b)		20,088		454,190
Broadcasting, Publishing & Printing — 2.3%
American Greetings Corp. Cl. A		51,401		1,226,942
Cox Radio, Inc. Cl. A(a)		55,911		911,349
Scholastic Corp.(a)		73,400		2,630,656
				4,768,947
Building Materials & Construction — 1.6%
Comfort Systems USA, Inc.		75,700		956,848
Emcor Group, Inc.(a)		43,400		2,467,290
				3,424,138
Chemicals — 3.5%
AEP Industries, Inc.(a)		5,300		282,542
CF Industries Holdings, Inc.		12,400		317,936
Innospec, Inc.		10,976		510,933
NewMarket Corp.		22,837		1,348,525
OM Group, Inc.(a)		61,023		2,763,121

	Number of Shares		Market Value
PolyOne Corp.(a)		31,600	$	237,000
Schulman (A.), Inc.		11,800		262,550
Usec, Inc.(a)		127,397		1,620,490
				7,343,097
Commercial Services — 6.9%
Convergys Corp.(a)		32,200		765,716
CPI Corp.		43,579		2,025,988
ICT Group, Inc.(a)		6,800		214,812
Ikon Office Solutions, Inc.		176,890		2,895,689
MPS Group, Inc.(a)		75,973		1,077,297
PHH Corp.(a)		20,100		580,287
Rewards Network, Inc.(a)		9,438		65,594
Service Corp. International		66,313		679,708
Sitel Corp.(a)		45,538		192,170
Spherion Corp.(a)		206,384		1,533,433
Universal Compression Holdings, Inc.(a)		24,218		1,504,180
Volt Information Sciences, Inc.(a) (b)		53,402		2,681,314
				14,216,188
Communications — 3.2%
Carrier Access Corp.(a)		107,410		704,610
CT Communications, Inc.		46,109		1,056,818
Ditech Networks, Inc.(a)		23,991		166,018
InterDigital Communications Corp.(a) (b)		28,690		962,550
Polycom, Inc.(a) (b)		92,700		2,865,357
UTStarcom, Inc.(a) (b)		111,619		976,666
				6,732,019
Computer Integrated Systems Design — 2.4%
Ansoft Corp.(a)		25,708		714,682
Mentor Graphics Corp.(a)		163,100		2,940,693
Netscout Systems, Inc.(a)		34,976		290,301
SYNNEX Corp.(a)		9,200		201,848
Synopsys, Inc.(a)		32,400		866,052
				5,013,576
Computer Programming Services — 1.0%
Covansys Corp.(a)		25,600		587,520
RealNetworks, Inc.(a)		141,018		1,542,737
				2,130,257
Computer Related Services — 0.1%
Electro Rent Corp.(a)		2,098		35,037
Ingram Micro, Inc. Cl. A(a)		9,100		185,731
				220,768
Computers & Information — 0.2%
Tech Data Corp.(a)		11,223		425,015

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Cosmetics & Personal Care — 0.0%
Stepan Co.		1,267	$	40,126
Data Processing & Preparation — 0.4%
CSG Systems International, Inc.(a)		28,995		775,036
Electric Utilities — 4.0%
Avista Corp.		79,553		2,013,486
Central Vermont Public Service Corp.		2,623		61,772
Idacorp, Inc.		57,300		2,214,645
NorthWestern Corp.		40,000		1,415,200
OGE Energy Corp.		6,100		244,000
Reliant Energy, Inc.(a)		44,000		625,240
UIL Holdings Corp.		18,016		760,095
Westar Energy, Inc.		35,000		908,600
				8,243,038
Electrical Equipment & Electronics — 1.6%
Acuity Brands, Inc.		11,400		593,256
Anaren, Inc.(a)		54,171		962,077
Atmel Corp.(a)		33,900		205,095
Belden CDT, Inc.		9,641		376,867
Exar Corp.(a)		15,717		204,321
Gerber Scientific, Inc.(a)		22,300		280,088
Intevac, Inc.(a)		12,400		321,780
Lattice Semiconductor Corp.(a)		45,400		294,192
				3,237,676
Energy — 2.6%
Holly Corp.		38,728		1,990,619
The Laclede Group, Inc.		4,400		154,132
Oneok, Inc.		14,000		603,680
Peoples Energy Corp.		505		22,508
Swift Energy Co.(a) (b)		57,467		2,575,096
				5,346,035
Entertainment & Leisure — 0.2%
Dover Downs Gaming & Entertainment, Inc.		28,200		377,034
Financial Services — 13.1%
Agree Realty Corp. REIT		9,000		309,330
American Home Mortgage Investment Corp. REIT(b)		82,702		2,904,494
Anthracite Capital, Inc. REIT(b)		178,454		2,271,719
Arbor Realty Trust, Inc. REIT		42,400		1,275,816
Capital Southwest Corp.		2,500		315,600
CentraCore Properties Trust REIT		6,160		199,153
Chittenden Corp.		54,129		1,661,219
Cousins Properties, Inc.		8,800		310,376
Crystal River Capital Inc.		8,500		217,005

	Number of Shares		Market Value
Entertainment Properties Trust REIT		10,633	$	621,393
Franklin Street Properties Corp. REIT		13,258		279,081
Gladstone Capital Corp.(b)		9,000		214,740
Gramercy Capital Corp. REIT		13,600		420,104
HRPT Properties Trust		140,600		1,736,410
JER Investors Trust, Inc. REIT		25,130		519,437
Knight Capital Group, Inc. Cl. A(a)		17,247		330,625
Medallion Financial Corp.		24,183		299,144
Medical Properties Trust, Inc. REIT(b)		112,691		1,724,172
Newkirk Realty Trust, Inc.(b)		57,172		1,031,383
NorthStar Realty Finance Corp. REIT		89,900		1,489,643
RAIT Financial Trust		45,000		1,551,600
Redwood Trust, Inc.(b)		45,266		2,629,049
Resource Capital Corp.		16,000		271,200
Senior Housing Properties Trust		83,900		2,053,872
Spirit Finance Corp. REIT		168,100		2,096,207
SWS Group, Inc.		6,944		247,901
Winston Hotels, Inc. REIT		15,400		204,050
				27,184,723
Food Retailers — 0.2%
Ingles Markets, Inc. Cl. A		16,530		492,429
Foods — 2.7%
Great Atlantic & Pacific Tea Co.(b)		8,430		216,988
Imperial Sugar Co.(b)		20,000		484,200
Performance Food Group Co.(a) (b)		29,900		826,436
Premium Standard Farms, Inc.		7,331		136,137
Ralcorp Holdings, Inc.(a)		16,000		814,240
Seaboard Corp.(b)		569		1,004,285
Sensient Technologies Corp.		47,600		1,170,960
Smart & Final, Inc.(a)		28,300		534,870
Spartan Stores, Inc.		21,368		447,232
				5,635,348
Forest Products & Paper — 1.3%
Buckeye Technologies, Inc.(a)		22,400		268,352
Greif, Inc. Cl. A		2,300		272,320
Rock-Tenn Co. Cl. A		62,827		1,703,240
United Stationers, Inc.(a)		10,051		469,281
				2,713,193

	Number of Shares		Market Value
Healthcare — 1.0%
CorVel Corp.(a)		27,663	$	1,315,929
Medcath Corp.(a)		24,800		678,528
				1,994,457
Heavy Construction — 0.9%
AMREP Corp.(b)		14,460		1,771,350
Heavy Machinery — 0.8%
NACCO Industries, Inc. Cl. A		12,378		1,690,835
Home Construction, Furnishings & Appliances — 1.4%
Furniture Brands International, Inc.(b)		53,800		873,174
Kimball International, Inc. Cl. B		30,327		736,946
Tempur-Pedic International, Inc.(a) (b)		65,000		1,329,900
				2,940,020
Industrial – Diversified — 0.1%
Ameron International Corp.		2,700		206,199
Information Retrieval Services — 0.3%
Digital River, Inc.(a)		10,500		585,795
Insurance — 6.9%
Alleghany Corp.(a)		1,200		436,320
American Physicians Capital, Inc.(a)		15,900		636,636
AMERIGROUP Corp.(a) (b)		81,697		2,932,105
Argonaut Group, Inc.(a)		5,915		206,197
Harleysville Group, Inc.		6,900		240,258
Meadowbrook Insurance Group, Inc.(a)		72,058		712,654
Molina Healthcare, Inc.(a)		56,569		1,839,058
National Interstate Corp.		8,786		213,500
Navigators Group, Inc.(a)		3,600		173,448
Odyssey Re Holdings Corp.(b)		72,700		2,711,710
Old Republic International Corp.		21,600		502,848
The Phoenix Companies, Inc.		25,300		402,017
Presidential Life Corp.		13,500		296,325
Reinsurance Group of America, Inc.		23,800		1,325,660
Safety Insurance Group, Inc.		4,900		248,479
SeaBright Insurance Holdings(a)		36,358		654,808
Tower Group, Inc.		22,200		689,754
				14,221,777
Internet Software — 0.1%
webMethods, Inc.(a)		22,500		165,600
Lodging — 0.7%
Marcus Corp.		55,805		1,427,492

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Value Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Machinery & Components — 0.4%
AGCO Corp.(a)		9,100	$	281,554
Robbins & Myers, Inc.(b)		8,000		367,360
Tennant Co.		6,190		179,510
				828,424
Manufacturing — 0.3%
EnPro Industries, Inc.(a) (b)		11,404		378,727
Tredegar Corp.		12,753		288,345
				667,072
Medical Supplies — 0.5%
Immucor, Inc.(a)		14,300		417,989
Zoll Medical Corp.(a)		11,800		687,232
				1,105,221
Metals & Mining — 0.9%
Olympic Steel, Inc.		6,682		148,541
Superior Essex, Inc.(a)		46,806		1,556,300
Wheeling-Pittsburgh Corp.(a)		10,020		187,675
				1,892,516
Pharmaceuticals — 3.4%
Caraco Pharmaceutical Laboratories Ltd.(a)		1,500		21,000
Millennium Pharmaceuticals, Inc.(a) (b)		184,224		2,008,042
Molecular Devices Corp.(a)		17,795		374,941
NBTY, Inc.(a)		75,700		3,146,849
Noven Pharmaceuticals, Inc.(a)		7,800		198,510
Pain Therapeutics, Inc.(a) (b)		5,565		49,529
Savient Pharmaceuticals, Inc.(a)		112,000		1,255,520
				7,054,391
Prepackaged Software — 4.2%
Blackbaud, Inc.		26,000		676,000
Brocade Communications Systems, Inc.(a)		272,500		2,237,225
Captaris, Inc.(a)		72,009		559,510
Interwoven, Inc.(a)		139,160		2,041,477
Keane, Inc.(a)		12,100		144,111
MicroStrategy, Inc. Cl. A(a) (b)		19,183		2,187,054
OPNET Technologies, Inc.(a)		100		1,445
SonicWALL, Inc.(a)		101,812		857,257
				8,704,079
Real Estate — 0.5%
Jones Lang Lasalle, Inc.		11,749		1,082,905
Restaurants — 2.5%
Bob Evans Farms, Inc.		5,700		195,054
CEC Entertainment, Inc.(a)		12,867		517,897
Jack in the Box, Inc.(a)		50,825		3,102,358

	Number of Shares		Market Value
O'Charley's, Inc.(a)		61,592	$	1,310,678
				5,125,987
Retail — 3.5%
Big Lots, Inc.(a)		74,250		1,701,810
Cash America International, Inc.		27,277		1,279,291
Dillards, Inc. Cl. A(b)		4,900		171,353
EZCORP, Inc. Cl. A(a)		22,200		360,750
Haverty Furniture Companies, Inc.(b)		18,909		279,853
Jo-Ann Stores, Inc.(a)		42,600		1,047,960
Marvel Entertainment, Inc.(a) (b)		92,400		2,486,484
				7,327,501
Telephone Utilities — 0.8%
Lightbridge, Inc.(a)		28,847		390,588
Telephone & Data Systems, Inc.		6,000		325,980
USA Mobility, Inc.		37,716		843,707
				1,560,275
Transportation — 1.3%
Overseas Shipholding Group, Inc.		13,396		754,195
P.A.M. Transportation Services, Inc.(a)		15,800		347,916
Saia, Inc.(a)		45,930		1,066,035
Trico Marine Services, Inc.(a)		5,400		206,874
U.S. Xpress Enterprises,Inc. Cl. A(a)		16,163		266,205
				2,641,225
TOTAL EQUITIES (Cost $186,096,266)				205,156,977
	Principal Amount
SHORT-TERM INVESTMENTS — 16.6%
Cash Equivalents — 16.0%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	824,225		824,225
American Beacon Money Market Fund(c)		284,651		284,651
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		1,204,636		1,204,636
Bank of America 5.270% 01/09/2007		634,019		634,019
Bank of America 5.310% 03/08/2007		634,019		634,019

	Principal Amount		Market Value
Bank of America 5.320% 02/16/2007	$	190,206	$	190,206
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		380,412		380,412
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		1,268,039		1,268,039
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		824,225		824,225
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		317,010		317,010
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		634,019		634,019
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		634,019		634,019
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		190,206		190,206
BGI Institutional Money Market Fund(c)		598,954		598,954
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		951,029		951,029
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		317,010		317,010
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		317,010		317,010
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		1,166,596		1,166,596
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		951,029		951,029
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		317,010		317,010
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		634,019		634,019
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		634,019		634,019
Dreyfus Cash Management Plus Money Market Fund(c)		226,470		226,470

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Value Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Federal Home Loan Bank Discount Note 5.145% 01/03/2007	$	106,191	$	106,191
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		165,449		165,449
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		634,019		634,019
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		253,608		253,608
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		951,029		951,029
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		951,029		951,029
Freddie Mac Discount Note 5.231% 01/23/2007		252,323		252,323
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		317,010		317,010
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		567,982		567,982
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		887,627		887,627
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		634,019		634,019
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		507,216		507,216
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		951,029		951,029
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		380,412		380,412
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		1,585,049		1,585,049
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		570,617		570,617
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		634,019		634,019

	Principal Amount		Market Value
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007	$	938,349	$	938,349
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		634,019		634,019
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		126,804		126,804
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		317,010		317,010
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		507,216		507,216
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		1,268,039		1,268,039
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		951,029		951,029
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		253,608		253,608
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		2,187,131		2,187,131
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		329,690		329,690
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		760,823		760,823
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		380,412		380,412
				33,135,590
Repurchase Agreement — 0.6%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)		1,367,615		1,367,615
TOTAL SHORT-TERM INVESTMENTS (Cost $34,503,205)				34,503,205
TOTAL INVESTMENTS — 115.6% (Cost $220,599,471)(f)				239,660,182
Other Assets/(Liabilities) — (15.6%)				(32,421,252	)
NET ASSETS — 100.0%			$	207,238,930

Notes to Portfolio of Investments

REIT - Real Estate Investment Trust

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $1,368,147. Collateralized by a U.S. Government Agency Obligation with a rate of 8.125%, maturity date of 05/25/2015, and an aggregate market value, including accrued interest, of $1,435,996.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 98.7%
COMMON STOCK — 98.7%
Aerospace & Defense — 0.8%
AAR Corp.(a) (b)		4,300	$	125,517
Armor Holdings, Inc.(a) (b)		3,500		191,975
GenCorp, Inc.(a) (b)		6,400		89,728
Kaman Corp.		2,800		62,692
Triumph Group, Inc.		1,900		99,617
				569,529
Agribusiness — 0.2%
Delta & Pine Land Co.		4,200		169,890
Air Transportation — 0.7%
Bristow Group, Inc.(a)		2,700		97,443
Forward Air Corp.		3,500		101,255
Frontier Airlines Holdings, Inc.(a) (b)		4,200		31,080
Mesa Air Group, Inc.(a) (b)		4,400		37,708
SkyWest, Inc.		7,400		188,774
				456,260
Apparel, Textiles & Shoes — 3.9%
Albany International Corp. Cl. A		3,385		111,400
Ashworth, Inc.(a)		1,800		13,068
Brown Shoe Co., Inc.		3,300		157,542
Cato Corp. Cl. A		3,700		84,767
Childrens Place(a) (b)		2,700		171,504
Christopher & Banks Corp.		4,500		83,970
Crocs, Inc.(a) (b)		3,900		168,480
Deckers Outdoor Corp.(a) (b)		1,300		77,935
Dress Barn, Inc.(a)		5,300		123,649
The Finish Line, Inc. Cl. A		4,800		68,544
The Gymboree Corp.(a)		3,600		137,376
Hot Topic, Inc.(a)		5,300		70,702
Interface, Inc. Cl. A(a)		6,125		87,097
Jos. A. Bank Clothiers, Inc.(a) (b)		2,100		61,635
Kellwood Co.(b)		2,900		94,308
K-Swiss, Inc. Cl. A		3,100		95,294
Oxford Industries, Inc.		1,800		89,370
Phillips-Van Heusen Corp.		6,400		321,088
Quiksilver, Inc.(a) (b)		14,000		220,500
Skechers U.S.A., Inc. Cl. A(a)		2,900		96,599
Tween Brands, Inc.(a) (b)		3,700		147,741
Wolverine World Wide, Inc.		6,500		185,380
				2,667,949

	Number of Shares		Market Value
Automotive & Parts — 1.8%
A.O. Smith Corp.		2,600	$	97,656
A.S.V., Inc.(a) (b)		2,200		35,794
Clarcor, Inc.		5,900		199,479
Group 1 Automotive, Inc.		2,812		145,437
Keystone Automotive Industries, Inc.(a)		1,900		64,581
LKQ Corp.(a)		5,200		119,548
Midas, Inc.(a)		1,400		32,200
Monaco Coach Corp.		3,300		46,728
Myers Industries, Inc.		3,200		50,112
The PEP Boys - Manny, Moe & Jack		6,300		93,618
Sonic Automotive, Inc.		3,500		101,640
Standard Motor Products, Inc.		1,500		22,470
Superior Industries International, Inc.(b)		2,700		52,029
Wabash National Corp.		3,700		55,870
Winnebago Industries, Inc.(b)		3,700		121,767
				1,238,929
Banking, Savings & Loans — 6.8%
Anchor Bancorp Wisconsin, Inc.		2,100		60,522
Bank Mutual Corp.		7,000		84,770
Bankunited Financial Corp. Cl. A		3,800		106,248
Brookline Bancorp, Inc.		7,100		93,507
Cascade Bancorp		3,300		102,399
Central Pacific Financial Corp.		3,600		139,536
Community Bank System, Inc.		3,400		78,200
Dime Community Bancshares		3,200		44,832
Downey Financial Corp.(b)		2,300		166,934
Financial Federal Corp.(b)		3,200		94,112
First Bancorp		9,400		89,582
First Commonwealth Financial Corp.		7,200		96,696
First Financial Bancorp		3,800		63,118
First Indiana Corp.		1,600		40,576
First Midwest Bancorp, Inc.		5,800		224,344
First Republic Bank(b)		3,564		139,281
FirstFed Financial Corp.(a) (b)		1,900		127,243
Flagstar Bancorp, Inc.		4,400		65,296
Franklin Bank Corp.(a)		2,800		57,512
Glacier Bancorp, Inc.		6,054		147,960
Hanmi Financial Corp.		4,800		108,144

	Number of Shares		Market Value
Independent Bank Corp.		2,320	$	58,673
Irwin Financial Corp.(b)		2,300		52,049
MAF Bancorp, Inc.		3,200		143,008
Nara Bancorp, Inc.		2,500		52,300
PrivateBancorp, Inc.(b)		2,100		87,423
Prosperity Bancshares, Inc.		3,000		103,530
Provident Bankshares Corp.		3,800		135,280
The South Financial Group, Inc.		8,700		231,333
Sterling Bancorp-NY		2,200		43,340
Sterling Bancshares, Inc.		8,250		107,415
Sterling Financial Corp.		4,901		165,703
Susquehanna Bancshares, Inc.		6,000		161,280
TrustCo Bank Corp. NY		8,700		96,744
UCBH Holdings, Inc.		11,549		202,800
Umpqua Holdings Corp.		6,800		200,124
United Bankshares, Inc.		4,300		166,195
Whitney Holding Corp.		7,650		249,543
Wilshire Bancorp, Inc.		1,900		36,043
Wintrust Financial Corp.		3,012		144,636
World Acceptance Corp.(a)		2,000		93,900
				4,662,131
Beverages — 0.1%
Peet's Coffee & Tea, Inc.(a)		1,600		41,984
Broadcasting, Publishing & Printing — 0.1%
Radio One, Inc. Cl. D(a)		9,200		62,008
Building Materials & Construction — 1.5%
Amcol International Corp.		2,600		72,124
Chemed Corp.		3,100		114,638
Digi International, Inc.(a)		2,600		35,854
ElkCorp		2,300		94,507
Emcor Group, Inc.(a)		3,700		210,345
Lennox International, Inc.		6,810		208,454
Simpson Manufacturing Co., Inc.(b)		4,300		136,095
Texas Industries, Inc.		2,768		177,789
				1,049,806
Chemicals — 1.7%
Arch Chemicals, Inc.		2,800		93,268
Cabot Microelectronics Corp.(a) (b)		2,800		95,032
Georgia Gulf Corp.		3,900		75,309
H.B. Fuller Co.		7,000		180,740
MacDermid, Inc.		2,900		98,890
OM Group, Inc.(a)		3,400		153,952
Omnova Solutions, Inc.(a)		5,200		23,816
Penford Corp.		1,100		19,030

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
PolyOne Corp.(a)		10,700	$	80,250
Schulman (A.), Inc.		2,800		62,300
SurModics, Inc.(a) (b)		1,900		59,128
TETRA Technologies, Inc.(a)		6,600		119,394
Tronox, Inc. Cl. B		4,800		75,792
Wellman, Inc.		3,300		10,527
				1,147,428
Commercial Services — 6.2%
Aaron Rents, Inc.		5,606		161,341
ABM Industries, Inc.		5,000		113,550
Administaff, Inc.(b)		2,800		119,756
ADVO, Inc.		3,700		120,620
AMN Healthcare Services, Inc.(a)		4,010		110,435
Angelica Corp.		1,200		30,960
Arbitron, Inc.		3,400		147,696
Bowne & Co., Inc.		3,500		55,790
Bright Horizons Family Solutions, Inc.(a)		3,000		115,980
CDI Corp.		1,600		39,840
Central Parking Corp.(b)		2,000		36,000
Coinstar, Inc.(a)		3,200		97,824
Consolidated Graphics, Inc.(a)		1,400		82,698
CPI Corp.		600		27,894
G&K Services, Inc. Cl. A		2,500		97,225
Gevity HR, Inc.		2,900		68,701
Global Payments, Inc.		7,900		365,770
Healthcare Services Group, Inc.		3,200		92,672
Heidrick & Struggles International, Inc.(a)		2,000		84,720
inVentiv Health, Inc.(a)		3,500		123,725
John H. Harland Co.		2,931		147,136
Kendle International, Inc.(a)		1,500		47,175
Labor Ready, Inc.(a)		6,000		109,980
Maximus, Inc.		2,500		76,950
Mobile Mini, Inc.(a)		4,200		113,148
On Assignment, Inc.(a)		3,200		37,600
Per-Se Technologies, Inc.(a) (b)		3,900		108,342
PharmaNet Development Group, Inc.(a) (b)		2,100		46,347
Portfolio Recovery Associates, Inc.(a) (b)		1,800		84,042
Pre-Paid Legal Services, Inc.(a) (b)		1,100		43,043
Regeneron Pharmaceuticals, Inc.(a)		7,608		152,693
Rewards Network, Inc.(a)		2,600		18,070
Spherion Corp.(a)		6,900		51,267
The Standard Register Co.		1,600		19,200
Startek, Inc.		1,400		18,956

	Number of Shares		Market Value
Universal Technical Institute, Inc.(a) (b)		2,700	$	59,967
URS Corp.(a)		6,000		257,100
Vertrue, Inc.(a) (b)		1,100		42,251
Viad Corp.		2,500		101,500
Volt Information Sciences, Inc.(a)		1,000		50,210
Waste Connections, Inc.(a)		5,225		217,099
Watson Wyatt Worldwide, Inc.		4,900		221,235
World Fuel Services Corp.		3,300		146,718
				4,263,226
Communications — 1.2%
Anixter International, Inc.(a)		3,900		211,770
Applied Signal Technology, Inc.		1,500		21,090
C-COR, Inc.(a)		5,700		63,498
Comtech Telecommunications(a)		2,600		98,982
CT Communications, Inc.		2,300		52,716
Cubic Corp.		1,900		41,230
Ditech Networks, Inc.(a)		4,100		28,372
Harmonic, Inc.(a)		8,800		63,976
Inter-Tel, Inc.		2,600		57,616
Standard Microsystems Corp.(a)		2,600		72,748
Symmetricom, Inc.(a)		5,400		48,168
Tollgrade Communications, Inc.(a)		1,700		17,969
Viasat, Inc.(a)		2,900		86,449
				864,584
Computer Integrated Systems Design — 1.8%
Adaptec, Inc.(a)		13,600		63,376
Avid Technology, Inc.(a) (b)		4,700		175,122
Blue Coat Systems, Inc.(a)		1,800		43,110
Brady Corp. Cl. A		6,258		233,298
Digital Insight Corp.(a)		3,700		142,413
JDA Software Group, Inc.(a)		3,600		49,572
ManTech International Corp. Cl. A(a)		2,100		77,343
Mercury Computer Systems, Inc.(a)		2,600		34,736
Network Equipment Technologies, Inc.(a)		3,100		18,042
Quality Systems, Inc.		2,000		74,540
Radiant Systems, Inc.(a)		3,000		31,320
RadiSys Corp.(a)		2,600		43,342
SYKES Enterprises, Inc.(a)		3,500		61,740
TALX Corp.		3,600		98,820
Websense, Inc.(a)		5,268		120,268
				1,267,042

	Number of Shares		Market Value
Computer Programming Services — 0.1%
Ciber, Inc.(a)		6,400	$	43,392
Computer Related Services — 0.9%
CACI International, Inc. Cl. A(a)		3,600		203,400
Carreker Corp.(a)		2,300		17,572
Checkpoint Systems, Inc.(a)		4,500		90,900
Digitas, Inc.(a)		10,196		136,728
Manhattan Associates, Inc.(a)		3,200		96,256
Neoware, Inc.(a)		2,500		33,025
Secure Computing Corp.(a)		7,400		48,544
				626,425
Computers & Information — 1.3%
Black Box Corp.		2,000		83,980
Global Imaging Systems, Inc.(a)		5,898		129,461
Komag, Inc.(a) (b)		3,600		136,368
MICROS Systems, Inc.(a)		4,600		242,420
Netgear, Inc.(a)		3,900		102,375
Paxar Corp.(a)		4,600		106,076
ScanSource, Inc.(a)		3,000		91,200
				891,880
Consumer Products — 0.3%
Lenox Group, Inc.(a)		1,700		10,880
Pool Corp.(b)		5,800		227,186
				238,066
Containers — 0.0%
Chesapeake Corp.		2,300		39,146
Cosmetics & Personal Care — 0.0%
Quaker Chemical Corp.		1,200		26,484
Data Processing & Preparation — 0.8%
eFunds Corp.(a)		5,400		148,500
FactSet Research Systems, Inc.		4,400		248,512
Kronos, Inc.(a)		3,700		135,938
				532,950
Electric Utilities — 1.5%
Allete, Inc.		3,500		162,890
Avista Corp.		6,110		154,644
Central Vermont Public Service Corp.		1,300		30,615
CH Energy Group, Inc.		1,600		84,480
Cleco Corp.		6,651		167,805
El Paso Electric Co.(a)		5,400		131,598
Green Mountain Power Corp.		600		20,334
UIL Holdings Corp.		2,766		116,698
Unisource Energy Corp.		4,100		149,773
				1,018,837

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Electrical Equipment & Electronics — 8.2%
Actel Corp.(a)		3,000	$	54,480
Acuity Brands, Inc.		5,000		260,200
Advanced Energy Industries, Inc.(a)		4,000		75,480
Aeroflex, Inc.(a)		8,500		99,620
Agilysys, Inc.		3,600		60,264
Analogic Corp.		1,600		89,824
ATMI, Inc.(a) (b)		4,000		122,120
Baldor Electric Co.		3,300		110,286
Barnes Group, Inc.		4,400		95,700
Bel Fuse, Inc. Cl. B(b)		1,400		48,706
Belden CDT, Inc.		5,000		195,450
Benchmark Electronics, Inc.(a)		7,600		185,136
C&D Technologies, Inc.(b)		3,200		15,168
Catapult Communications Corp.(a)		1,300		11,674
Ceradyne, Inc.(a) (b)		3,100		175,150
Cognex Corp.		5,100		121,482
Cohu, Inc.		2,600		52,416
CTS Corp.		4,200		65,940
Cymer, Inc.(a)		4,277		187,974
Daktronics, Inc.		3,700		136,345
Diodes, Inc.(a)		2,300		81,604
DSP Group, Inc.(a)		3,300		71,610
EDO Corp.(b)		1,900		45,106
Electro Scientific Industries, Inc.(a)		3,400		68,476
Esterline Technologies Corp.(a)		3,000		120,690
Exar Corp.(a)		4,200		54,600
FLIR Systems, Inc.(a) (b)		7,732		246,110
Gerber Scientific, Inc.(a)		2,800		35,168
Greatbatch, Inc.(a)		2,500		67,300
Hutchinson Technology, Inc.(a) (b)		3,000		70,710
Intevac, Inc.(a)		2,500		64,875
Itron, Inc.(a)		3,000		155,520
Keithley Instruments, Inc.		1,800		23,670
Kopin Corp.(a)		7,800		27,846
Littelfuse, Inc.(a)		2,600		82,888
Lo-Jack Corp.(a)		2,200		37,576
Magnetek, Inc.(a)		3,700		20,905
Methode Electronics, Inc.		4,400		47,652
Microsemi Corp.(a)		8,200		161,130
MKS Instruments, Inc.(a)		4,300		97,094
Moog, Inc. Cl. A(a)		4,900		187,131
Park Electrochemical Corp.		2,400		61,560
Pericom Semiconductor Corp.(a)		3,000		34,410
Photon Dynamics, Inc.(a)		2,100		24,549
Photronics, Inc.(a)		4,800		78,432
Planar Systems, Inc.(a)		1,900		18,373

	Number of Shares		Market Value
Rogers Corp.(a)		2,062	$	121,967
Rudolph Technologies, Inc.(a)		3,000		47,760
Skyworks Solutions, Inc.(a)		18,800		133,104
Spectrum Brands, Inc.(a) (b)		4,400		47,960
Supertex, Inc.(a) (b)		1,600		62,800
Synaptics, Inc.(a)		2,900		86,101
Technitrol, Inc.		4,800		114,672
Teledyne Technologies, Inc.(a)		4,000		160,520
Trimble Navigation Ltd.(a)		6,400		324,672
Varian Semiconductor Equipment Associates, Inc.(a)		6,400		291,328
Veeco Intruments, Inc.(a)		3,500		65,555
Vicor Corp.		2,400		26,664
				5,631,503
Energy — 9.2%
Atmos Energy Corp.		10,067		321,238
Atwood Oceanics, Inc.(a)		3,100		151,807
Cabot Oil & Gas Corp. Cl. A(b)		5,500		333,575
CARBO Ceramics, Inc.		2,400		89,688
Cascade Natural Gas Corp.		1,400		36,288
Cimarex Energy Co.		9,600		350,400
Energen Corp.		8,300		389,602
Frontier Oil Corp.		12,800		367,872
Headwaters, Inc.(a) (b)		4,900		117,404
Helix Energy Solutions Group, Inc.(a) (b)		11,015		345,541
The Laclede Group, Inc.		2,500		87,575
New Jersey Resources Corp.		3,200		155,456
Northwest Natural Gas Co.		3,200		135,808
Oceaneering International, Inc.(a)		6,300		250,110
Penn Virginia Corp.		2,100		147,084
Petroleum Development Corp.(a)		1,700		73,185
Piedmont Natural Gas Co., Inc.(b)		8,700		232,725
SEACOR Holdings, Inc.(a) (b)		2,500		247,850
South Jersey Industries, Inc.		3,400		113,594
Southern Union Co.		12,487		349,012
Southwest Gas Corp.		4,800		184,176
St. Mary Land & Exploration Co.(b)		6,400		235,776
Stone Energy Corp.(a)		3,300		116,655
Swift Energy Co.(a)		3,400		152,354
TETRA Technologies, Inc.(a)		8,400		214,872
UGI Corp.		12,200		332,816
Unit Corp.(a)		5,400		261,630
Veritas DGC, Inc.(a)		4,200		359,646
W-H Energy Services, Inc.(a)		3,500		170,415
				6,324,154

	Number of Shares		Market Value
Entertainment & Leisure — 1.0%
JAKKS Pacific, Inc.(a) (b)		3,200	$	69,888
Live Nation, Inc.(a) (b)		7,516		168,358
Multimedia Games, Inc.(a) (b)		3,400		32,640
Nautilus, Inc.(b)		3,700		51,800
Pinnacle Entertainment, Inc.(a)		5,500		182,270
Shuffle Master, Inc.(a) (b)		4,100		107,420
WMS Industries, Inc.(a)		2,700		94,122
				706,498
Environmental Controls — 0.2%
Input/Output, Inc.(a) (b)		8,100		110,403
Financial Services — 5.9%
4Kids Entertainment, Inc.(a)		1,600		29,152
Acadia Realty Trust REIT		3,800		95,076
BankAtlantic Bancorp, Inc. Cl. A		5,400		74,574
Boston Private Financial Holdings, Inc.		4,200		118,482
Chittenden Corp.		5,400		165,726
Colonial Properties Trust REIT		5,300		248,464
East West Bancorp, Inc.		7,100		251,482
Eastgroup Properties REIT		2,700		144,612
Entertainment Properties Trust REIT		3,100		181,164
Essex Property Trust, Inc. REIT		2,700		348,975
Fidelity Bankshares, Inc.		2,600		103,142
First Cash Financial Services, Inc.(a)		3,200		82,784
Inland Real Estate Corp. REIT(b)		8,000		149,760
Investment Technology Group, Inc.(a)		5,100		218,688
Kilroy Realty Corp.		3,695		288,210
LaBranche & Co., Inc.(a) (b)		6,300		61,929
Lexington Corporate Properties Trust REIT(b)		8,000		179,440
LTC Properties, Inc.		2,500		68,275
Mid-America Apartment Communities, Inc. REIT		2,754		157,639
National Retail Properties, Inc. REIT(b)		6,781		155,624
New Century Financial Corp. REIT(b)		5,200		164,268
Parkway Properties, Inc. REIT		1,700		86,717
Piper Jaffray Cos.(a)		2,090		136,164
PS Business Parks, Inc. REIT		1,800		127,278

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Senior Housing Properties Trust		7,855	$	192,290
Sovran Self Storage Inc. REIT		2,365		135,467
SWS Group, Inc.		1,900		67,830
				4,033,212
Foods — 2.4%
Corn Products International, Inc.		8,600		297,044
Flowers Foods, Inc.		6,100		164,639
Great Atlantic & Pacific Tea Co.(b)		2,300		59,202
Hain Celestial Group, Inc.(a)		4,500		140,445
J&J Snack Foods Corp.		1,600		66,240
Lance, Inc.		3,600		72,288
Nash Finch Co.(b)		1,700		46,410
Panera Bread Co. Cl. A(a) (b)		3,700		206,867
Performance Food Group Co.(a)		4,100		113,324
Ralcorp Holdings, Inc.(a)		3,080		156,741
Sanderson Farms, Inc.(b)		1,800		54,522
TreeHouse Foods, Inc.(a) (b)		3,600		112,320
United Natural Foods, Inc.(a)		4,900		176,008
				1,666,050
Forest Products & Paper — 1.5%
Buckeye Technologies, Inc.(a)		4,200		50,316
Building Materials Holding Corp.(b)		3,400		83,946
Caraustar Industries, Inc.(a)		3,300		26,697
Deltic Timber Corp.		1,200		66,936
Drew Industries, Inc.(a)		2,100		54,621
Neenah Paper, Inc.		1,700		60,044
Playtex Products, Inc.(a)		6,400		92,096
Pope & Talbot, Inc.(a) (b)		2,100		11,487
Rock-Tenn Co. Cl. A		3,900		105,729
School Specialty, Inc.(a) (b)		2,200		82,478
Schweitzer-Mauduit International, Inc.		1,900		49,495
United Stationers, Inc.(a)		3,500		163,415
Universal Forest Products, Inc.		2,200		102,564
Wausau Paper Corp.		5,200		77,948
				1,027,772
Healthcare — 3.2%
Allscripts Healthcare Solutions, Inc.(a) (b)		5,500		148,445
Amedisys, Inc.(a) (b)		3,001		98,643
AmSurg Corp.(a) (b)		3,500		80,500

	Number of Shares		Market Value
Cross Country Healthcare, Inc.(a)		2,600	$	56,732
CryoLife, Inc.(a)		2,800		21,420
Enzo Biochem, Inc.(a) (b)		3,200		45,664
Genesis HealthCare Corp.(a)		2,300		108,629
Gentiva Health Services, Inc.(a)		3,300		62,898
Healthways, Inc.(a) (b)		4,000		190,840
Hooper Holmes, Inc.(a)		8,300		27,473
IDEXX Laboratories, Inc.(a)		3,600		285,480
LCA-Vision, Inc.(b)		2,400		82,464
Matria Healthcare, Inc.(a) (b)		2,500		71,825
Odyssey Healthcare, Inc.(a)		4,100		54,366
Pediatrix Medical Group, Inc.(a)		5,600		273,840
RehabCare Group, Inc.(a)		2,100		31,185
Sierra Health Services, Inc.(a)		6,582		237,215
Sunrise Senior Living, Inc.(a)		5,200		159,744
United Surgical Partners International, Inc.(a)		5,200		147,420
				2,184,783
Heavy Construction — 0.1%
M/I Homes, Inc.(b)		1,400		53,466
Heavy Machinery — 2.2%
Applied Industrial Technologies, Inc.		4,300		113,133
Astec Industries, Inc.(a)		2,200		77,220
Curtiss-Wright Corp.		5,100		189,108
Dril-Quip, Inc.(a)		2,800		109,648
Hydril(a)		2,265		170,305
Lawson Products		480		22,027
Lindsay Corp.		1,400		45,710
Lufkin Industries, Inc.		1,800		104,544
Standex International Corp.		1,400		42,182
The Manitowoc Co., Inc.		7,100		421,953
The Toro Co.		4,700		219,161
				1,514,991
Home Construction, Furnishings & Appliances — 1.9%
Bassett Furniture Industries, Inc.		1,500		24,510
Champion Enterprises, Inc.(a)		9,000		84,240
Ethan Allen Interiors, Inc.		3,700		133,607
Fossil, Inc.(a)		5,200		117,416
La-Z-Boy, Inc.(b)		5,900		70,033
Meritage Homes Corp.(a) (b)		2,500		119,300
Movado Group, Inc.		2,400		69,600
National Presto Industries, Inc.		500		29,935

	Number of Shares		Market Value
NVR, Inc.(a) (b)		561	$	361,845
Select Comfort Corp.(a) (b)		6,100		106,079
Standard-Pacific Corp.(b)		7,538		201,943
				1,318,508
Household Products — 0.2%
Apogee Enterprises, Inc.		3,300		63,723
Libbey, Inc.		1,800		22,212
WD-40 Co.		2,000		69,740
				155,675
Industrial – Diversified — 0.1%
Lydall, Inc.(a)		2,000		21,620
Russ Berrie and Co., Inc.(a)		1,500		23,175
				44,795
Information Retrieval Services — 0.2%
Bankrate, Inc.(a) (b)		1,300		49,335
InfoSpace, Inc.(a)		3,600		73,836
MIVA, Inc.(a)		3,500		11,865
				135,036
Insurance — 3.5%
AMERIGROUP Corp.(a) (b)		6,000		215,340
Centene Corp.(a) (b)		5,000		122,850
Delphi Financial Group, Inc. Cl. A		5,050		204,323
Fremont General Corp.		7,800		126,438
Hilb, Rogal & Hobbs Co.		4,200		176,904
Infinity Property & Casualty Corp.		2,300		111,297
Landamerica Financial Group, Inc.(b)		2,000		126,220
Philadelphia Consolidated Holding Corp.(a)		6,600		294,096
Presidential Life Corp.		2,500		54,875
ProAssurance Corp.(a)		3,835		191,443
RLI Corp.		2,300		129,766
Safety Insurance Group, Inc.		1,600		81,136
SCPIE Holdings, Inc.(a)		1,200		31,368
Selective Insurance Group		3,262		186,880
Stewart Information Services		2,100		91,056
United Fire & Casualty Co.		2,451		86,398
Zenith National Insurance Corp.		4,300		201,713
				2,432,103
Lodging — 0.4%
Aztar Corp.(a)		4,200		228,564
Marcus Corp.		2,400		61,392
				289,956
Machinery & Components — 2.9%
Axcelis Technologies, Inc.(a)		12,000		69,960
Briggs & Stratton Corp.		5,700		153,615
Brooks Automation, Inc.(a)		8,700		125,280
Gardner Denver, Inc.(a)		6,100		227,591

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
IDEX Corp.		6,200	$	293,942
Insituform Technologies, Inc. Cl. A(a)		3,200		82,752
Kaydon Corp.		3,300		131,142
Kulicke & Soffa Industries, Inc.(a)		6,800		57,120
Lone Star Technologies, Inc.(a)		3,600		174,276
Regal-Beloit Corp.		3,600		189,036
Robbins & Myers, Inc.(b)		1,900		87,248
Ultratech, Inc.(a)		2,800		34,944
Valmont Industries, Inc.		2,000		110,980
Watsco, Inc.		2,800		132,048
Woodward Governor Co.		3,400		135,014
				2,004,948
Manufacturing — 0.6%
AptarGroup, Inc.		4,000		236,160
EnPro Industries, Inc.(a) (b)		2,500		83,025
Tredegar Corp.		3,300		74,613
				393,798
Medical Supplies — 5.2%
American Medical Systems Holdings, Inc.(a) (b)		8,300		153,716
ArthoCare Corp.(a) (b)		3,100		123,752
Biolase Technology, Inc.(a) (b)		2,900		25,375
Biosite, Inc.(a)		1,900		92,815
Cambrex Corp.		3,200		72,704
Coherent, Inc.(a)		3,600		113,652
CONMED Corp.(a)		3,300		76,296
Cooper Cos., Inc.		5,100		226,950
Cyberonics, Inc.(a) (b)		2,600		53,664
Datascope Corp.		1,500		54,660
Dionex Corp.(a)		2,200		124,762
DJO Inc.(a)		2,700		115,614
FEI Co.(a)		3,000		79,110
Haemonetics Corp.(a)		3,100		139,562
Hologic, Inc.(a)		6,104		288,597
ICU Medical, Inc.(a)		1,700		69,156
Immucor, Inc.(a)		7,800		227,994
Integra LifeSciences Holdings Corp.(a) (b)		2,300		97,957
Invacare Corp.		3,800		93,290
Kensey Nash Corp.(a)		1,300		41,340
Mentor Corp.(b)		4,913		240,098
Merit Medical Systems, Inc.(a)		3,200		50,688
MTS Systems Corp.		2,100		81,102
Osteotech, Inc.(a)		2,200		12,430
Owens & Minor, Inc.		4,700		146,969
Palomar Medical Technologies, Inc.(a) (b)		2,000		101,340

	Number of Shares		Market Value
PolyMedica Corp.(b)		2,600	$	105,066
Possis Medical, Inc.(a)		2,200		29,656
Respironics, Inc.(a)		8,500		320,875
Theragenics Corp.(a)		4,000		12,400
Viasys Healthcare, Inc.(a)		3,800		105,716
Vital Signs, Inc.		900		44,928
X-Rite, Inc.		3,100		38,130
				3,560,364
Metals & Mining — 3.6%
Brush Engineered Materials, Inc.(a)		2,400		81,048
Carpenter Technology		2,900		297,308
Castle (A.M.) & Co.		1,400		35,630
Century Aluminum Co.(a)		2,700		120,555
Chaparral Steel Co.(b)		5,400		239,058
Cleveland-Cliffs, Inc.		4,766		230,865
Griffon Corp.(a)		3,000		76,500
Massey Energy Co.		9,400		218,362
Material Sciences Corp.(a)		1,600		20,704
Mueller Industries, Inc.		4,300		136,310
NCI Building Systems, Inc.(a)		2,300		119,025
Quanex Corp.		4,300		148,737
RTI International Metals, Inc.(a) (b)		2,700		211,194
Ryerson, Inc.(b)		3,000		75,270
The Shaw Group, Inc.(a)		9,300		311,550
Steel Technologies, Inc.		1,400		24,570
Sturm,Ruger & Co., Inc.(a)		2,100		20,160
Watts Water Technologies, Inc. Cl. A		3,420		140,596
				2,507,442
Pharmaceuticals — 1.8%
Alpharma, Inc. Cl. A		5,000		120,500
Arqule, Inc.(a)		3,300		19,536
Bradley Pharmaceuticals, Inc.(a) (b)		1,900		39,102
Digene Corp.(a)		2,800		134,176
Mannatech, Inc.(b)		1,800		26,514
Meridian Bioscience, Inc.		2,600		63,778
MGI Pharma, Inc.(a)		9,100		167,531
NBTY, Inc.(a)		6,500		270,205
Noven Pharmaceuticals, Inc.(a)		2,800		71,260
PAREXEL International Corp.(a)		3,200		92,704
PetMed Express, Inc.(a) (b)		3,000		40,050
Savient Pharmaceuticals, Inc.(a)		5,460		61,207
Sciele Pharma, Inc.(a) (b)		3,500		84,000
USANA Health Sciences, Inc.(a) (b)		1,100		56,826
				1,247,389

	Number of Shares		Market Value
Photography Equipment/Supplies — 0.1%
Sonic Solutions, Inc.(a)		3,000	$	48,900
Prepackaged Software — 3.2%
Altiris, Inc.(a)		2,900		73,602
Ansys, Inc.(a)		4,497		195,575
Captaris, Inc.(a)		3,100		24,087
Cerner Corp.(a) (b)		7,500		341,250
Dendrite International, Inc.(a)		5,200		55,692
Epicor Software Corp.(a)		6,600		89,166
EPIQ Systems, Inc.(a) (b)		1,700		28,849
Hyperion Solutions Corp.(a)		6,800		244,392
Keane, Inc.(a)		5,100		60,741
Mapinfo Corp.(a)		2,600		33,930
Napster, Inc.(a)		5,500		19,965
Open Solutions, Inc.(a)		2,400		90,336
PC-Tel, Inc.(a)		2,700		25,245
Phoenix Technologies Ltd.(a)		3,100		13,950
Progress Software Corp.(a)		4,700		131,271
SPSS, Inc.(a)		2,300		69,161
Take-Two Interactive Software, Inc.(a) (b)		8,500		150,960
THQ, Inc.(a) (b)		7,400		240,648
TradeStation Group, Inc.(a) (b)		2,900		39,875
United Online, Inc.(b)		7,700		102,256
WebEx Communications, Inc.(a)		5,000		174,450
				2,205,401
Restaurants — 2.4%
California Pizza Kitchen, Inc.(a)		2,200		73,282
CEC Entertainment, Inc.(a)		3,900		156,975
CKE Restaurants, Inc.		8,100		149,040
IHOP Corp.		1,800		94,860
Jack in the Box, Inc.(a)		3,913		238,850
Landry's Restaurants, Inc.		2,000		60,180
O'Charley's, Inc.(a)		2,700		57,456
P.F. Chang's China Bistro, Inc.(a) (b)		3,100		118,978
Papa John's International, Inc.(a)		2,800		81,228
RARE Hospitality International, Inc.(a)		4,000		131,720
Red Robin Gourmet Burgers, Inc.(a)		1,900		68,115
Sonic Corp.(a)		8,050		192,798
The Steak n Shake Co.(a)		3,300		58,080
Triarc Cos. Cl.B		7,256		145,120
				1,626,682

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Retail — 3.3%
Bell Microproducts, Inc.(a)		3,800	$	26,790
Blue Nile, Inc.(a) (b)		1,600		59,024
Casey's General Stores, Inc.		5,900		138,945
Cash America International, Inc.		3,400		159,460
Central Garden & Pet Co.(a)		2,800		135,576
Cost Plus, Inc.(a) (b)		2,800		28,840
Fred's, Inc.(b)		4,800		57,792
Genesco, Inc.(a) (b)		2,600		96,980
Guitar Center, Inc.(a)		3,441		156,428
Hancock Fabrics, Inc.(a) (b)		2,400		8,256
Haverty Furniture Companies, Inc.		2,600		38,480
Hibbett Sporting Goods, Inc.(a)		3,700		112,961
Insight Enterprises, Inc.(a)		5,600		105,672
Jo-Ann Stores, Inc.(a)		2,900		71,340
Longs Drug Stores Corp.		3,300		139,854
MarineMax, Inc.(a) (b)		2,000		51,860
Men's Wearhouse, Inc.		6,100		233,386
Stage Stores, Inc.		3,452		104,906
Stamps.com, Inc.(a)		2,200		34,650
Stein Mart, Inc.		3,200		42,432
Stride Rite Corp.		4,300		64,844
Tractor Supply Co.(a) (b)		4,000		178,840
Tuesday Morning Corp.		3,300		51,315
Zale Corp.(a)		5,600		157,976
				2,256,607
Telephone Utilities — 0.7%
Audiovox Corp. Cl. A(a)		2,300		32,407
Brightpoint, Inc.(a)		6,040		81,238
Commonwealth Telephone Enterprises, Inc.		2,500		104,650
General Communication, Inc. Cl. A(a)		5,300		83,369
j2 Global Communications, Inc.(a) (b)		5,700		155,325
Novatel Wireless, Inc.(a)		3,700		35,779
				492,768
Tobacco — 0.1%
Alliance One International, Inc.(a)		10,300		72,718
Toys, Games — 0.3%
K2, Inc.(a)		5,600		73,864
RC2 Corp.(a)		2,464		108,416
				182,280
Transportation — 2.5%
Arctic Cat, Inc.		1,600		28,144
Arkansas Best Corp.		2,900		104,400
Coachmen Industries, Inc.		1,800		19,800

	Number of Shares		Market Value
EGL, Inc.(a)		3,669	$	109,263
Fleetwood Enterprises, Inc.(a) (b)		7,600		60,116
Heartland Express, Inc.		6,799		102,121
Hub Group, Inc. Cl. A(a)		4,600		126,730
Kansas City Southern(a) (b)		8,839		256,154
Kirby Corp.(a)		6,100		208,193
Knight Transportation, Inc.		6,600		112,530
Landstar System, Inc.		6,600		251,988
Old Dominion Freight Line, Inc.(a)		3,300		79,431
Polaris Industries, Inc.(b)		4,612		215,980
Skyline Corp.		800		32,176
				1,707,026
Water Companies — 0.1%
American States Water Co.		2,000		77,240
TOTAL EQUITIES (Cost $67,391,060)				67,890,414
MUTUAL FUND — 0.1%
Financial Services — 0.1%
iShares S&P SmallCap 600 Index Fund(b)		1,173		77,453
TOTAL MUTUAL FUND (Cost $73,103)				77,453
TOTAL LONG TERM INVESTMENTS (Cost $67,464,163)				67,967,867
	Principal Amount
SHORT-TERM INVESTMENTS — 20.2%
Cash Equivalents — 19.0%(e)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	325,219		325,219
American Beacon Money Market Fund(c)		112,317		112,317
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		475,321		475,321
Bank of America 5.270% 01/09/2007		250,169		250,169
Bank of America 5.310% 03/08/2007		250,169		250,169
Bank of America 5.320% 02/16/2007		75,051		75,051
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		150,101		150,101

	Principal Amount		Market Value
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007	$	500,338	$	500,338
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		325,220		325,220
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		125,085		125,085
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		250,169		250,169
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		250,169		250,169
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		75,051		75,051
BGI Institutional Money Market Fund(c)		236,333		236,333
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		375,254		375,254
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		125,085		125,085
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		125,085		125,085
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		460,311		460,311
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		375,254		375,254
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		125,085		125,085
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		250,169		250,169
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		250,169		250,169
Dreyfus Cash Management Plus Money Market Fund(c)		89,360		89,360
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		41,900		41,900
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		65,282		65,282

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Small Cap Index Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007	$	250,169	$	250,169
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		100,068		100,068
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		375,254		375,254
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		375,254		375,254
Freddie Mac Discount Note 5.231% 01/23/2007		99,561		99,561
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		125,085		125,085
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		224,112		224,112
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		350,237		350,237
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		250,169		250,169
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		200,135		200,135
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		375,254		375,254
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		150,101		150,101
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		625,423		625,423
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		225,152		225,152
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		250,169		250,169
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		370,250		370,250
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		250,169		250,169

	Principal Amount		Market Value
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007	$	50,034	$	50,034
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		125,085		125,085
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		200,135		200,135
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		500,338		500,338
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		375,254		375,254
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		100,068		100,068
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		862,990		862,990
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		130,088		130,088
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		300,203		300,203
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		150,101		150,101
				13,074,524
Repurchase Agreement — 1.1%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(f)		779,296		779,296
U.S. Treasury Bills — 0.1%
U.S. Treasury Bill(d) 4.850% 02/22/2007		60,000		59,579
TOTAL SHORT-TERM INVESTMENTS (Cost $13,913,399)				13,913,399
TOTAL INVESTMENTS — 119.0% (Cost $81,377,562)(g)				81,881,266
Other Assets/ (Liabilities) — (19.0%)				(13,098,464	)
NET ASSETS — 100.0%			$	68,782,802

Notes to Portfolio of Investments

REIT - Real Estate Investment Trust

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) This security is held as collateral for open futures contracts. (Note 2).

(e) Represents investments of security lending collateral. (Note 2).

(f) Maturity value of $779,599. Collateralized by a U.S. Government Agency obligation with a rate of 8.125%, maturity date of 2/25/2014, and aggregate market value, including accrued interest, of $818,261.

(g) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

MML Global Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 98.3%
COMMON STOCK — 96.5%
Advertising — 0.6%
IPSOS		9,762	$	350,039
Aerospace & Defense — 0.5%
United Technologies Corp.		4,725		295,407
Automotive & Parts — 2.4%
Continental AG		5,123		594,222
Hyundai Mobis(a)		2,650		244,768
Nissan Motor Co. Ltd.		51,200		622,641
				1,461,631
Banking — 2.1%
Allied Irish Banks PLC		16,990		505,892
Barclays PLC		55,476		791,487
				1,297,379
Banking, Savings & Loans — 10.5%
Anglo Irish Bank Corp. PLC		58,219		1,204,371
Bank of America Corp.		17,100		912,969
BNP Paribas SA		3,453		374,216
Capital One Financial Corp.		5,855		449,781
Daegu Bank(a)		8,530		145,380
Depfa Bank PLC		20,430		365,608
Fortis		8,151		346,002
Freddie Mac		5,300		359,870
JP Morgan Chase & Co.		12,900		623,070
Lloyds TSB Group PLC		37,890		423,494
SLM Corp.		5,200		253,604
Swedbank AB		2,600		93,765
Wachovia Corp.		10,340		588,863
Wells Fargo & Co.		8,540		303,682
				6,444,675
Beverages — 2.2%
C&C Group PLC		16,605		294,289
The Coca-Cola Co.		6,090		293,843
InBev		11,403		749,886
				1,338,018
Broadcasting, Publishing & Printing — 2.5%
Advanced Digital Broadcast Holdings SA(a)		5,379		352,358
Comcast Corp. Special, Cl. A(a)		10,500		439,740
Corus Entertainment, Inc. Cl. B		12,400		444,099
Viacom, Inc. Cl. B(a)		7,000		287,210
				1,523,407

	Number of Shares		Market Value
Building Materials & Construction — 3.5%
CRH PLC		3,070	$	127,066
CRH PLC (London)		17,959		744,776
Lindab International Ab(a)		8,800		166,793
Marazzi Gruppo Ceramiche SpA		29,519		368,176
Paladin Resources Ltd.(a)		75,466		525,548
Titan Cement Co.		4,320		234,493
				2,166,852
Chemicals — 2.5%
Air Products & Chemicals, Inc.		3,100		217,868
Du Pont (E.I.) de Nemours & Co.(b)		10,600		516,326
Tenma Corp.		7,100		128,208
Wacker Chemie AG(a)		3,270		424,306
Wavin Nv(a)		11,520		224,916
				1,511,624
Commercial Services — 2.5%
Heiwa Corp.		28,000		355,202
MacDonald Dettwiler & Associates Ltd.(a)		15,330		566,234
Pasona, Inc.		84		170,138
RPS Group PLC		60,523		320,455
Takuma Co. Ltd.		25,000		145,787
				1,557,816
Communications — 2.6%
L-3 Communications Holdings, Inc.		2,750		224,895
SK Telecom Co. Ltd.		1,824		435,594
Vodafone Group PLC		333,417		921,544
				1,582,033
Computers & Information — 3.1%
Cisco Systems, Inc.(a)		15,050		411,317
EMC Corp.(a) (b)		21,950		289,740
Groupe Steria Sca		500		29,875
International Business Machines Corp.		1,900		184,585
Seagate Technology		5,300		140,450
TPV Technology Ltd.		633,000		400,772
Wincor Nixdorf AG		3,081		478,177
				1,934,916
Cosmetics & Personal Care — 1.5%
Colgate-Palmolive Co.		3,600		234,864
Natura Cosmeticos SA		11,500		161,385
The Procter & Gamble Co.		7,800		501,306
				897,555

	Number of Shares		Market Value
Data Processing & Preparation — 0.2%
Tele Atlas NV(a)		6,530	$	136,929
Diversified Financial — 0.3%
Acom Co. Ltd.		6,050		203,081
Electric Utilities — 2.0%
Dominion Resources, Inc.		2,800		234,752
Duke Energy Corp.		8,500		282,285
Entergy Corp.		2,425		223,876
Exelon Corp.		5,440		336,682
Public Service Enterprise Group, Inc.		1,900		126,122
				1,203,717
Electrical Equipment & Electronics — 2.1%
Icos Vision Systems NV(a)		4,278		180,335
Mars Engineering Corp.(b)		21,700		425,107
Rockwell Automation, Inc.		3,110		189,959
Texas Instruments, Inc.		17,900		515,520
				1,310,921
Energy — 15.1%
Addax Petroleum Corp.		13,230		373,808
Apache Corp.		6,900		458,919
Burren Energy PLC		45,711		788,773
Cat Oil AG(a)		7,350		193,215
Centurion Energy International, Inc.(a)		22,100		227,532
Chevron Corp.		4,200		308,826
ConocoPhillips Co.		11,100		798,645
Dragon Oil PLC(a)		108,313		367,506
Exxon Mobil Corp.		15,200		1,164,776
Occidental Petroleum Corp.		5,880		287,120
Peabody Energy Corp.(b)		6,000		242,460
Petroleo Brasileiro SA		5,800		597,342
Prosafe Asa		19,650		276,481
Quicksilver Resources, Inc.(a) (b)		9,250		338,458
Suncor Energy, Inc.		7,412		587,151
Talisman Energy, Inc.		34,500		589,515
Total SA Sponsored ADR (France)		6,200		445,904
Tullow Oil PLC		44,038		343,769
Ultrapar Participaceos SA(b)		12,700		292,100
Woodside Petroleum Ltd.		20,338		611,080
				9,293,380
Entertainment & Leisure — 1.6%
Great Canadian Gaming Corp.(a)		16,400		163,752
Pentax Corp.(b)		63,000		396,310
Raymarine PLC		5,230		48,311

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Global Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
William Hill PLC		32,380	$	400,451
				1,008,824
Financial Services — 6.2%
Berkshire Hathaway, Inc. Cl. B(a) (b)		101		370,266
Citigroup, Inc.		16,520		920,164
Countrywide Financial Corp.		5,700		241,965
The Goldman Sachs Group, Inc.		850		169,448
Kensington Group PLC		23,454		362,698
Merrill Lynch & Co., Inc.		7,100		661,010
Morgan Stanley		3,800		309,434
Northern Rock PLC		15,747		362,864
Societe Generale Cl. A		1,952		329,515
Timbercorp Ltd.		38,666		91,477
				3,818,841
Foods — 0.5%
M Dias Branco SA(a)		2,000		23,388
Sligro Food Group NV		3,768		255,423
				278,811
Healthcare — 0.2%
Nissin Healthcare Food Service Co. Ltd.		9,500		119,977
Heavy Construction — 0.8%
Barratt Developments PLC		20,960		507,525
Heavy Machinery — 0.5%
Chiyoda Corp.		17,000		333,716
Home Construction, Furnishings & Appliances — 2.6%
Kaufman & Broad SA		3,574		222,752
Nobia AB		8,060		308,965
Redrow PLC		52,150		728,632
Toll Brothers, Inc.(a) (b)		10,100		325,523
				1,585,872
Industrial – Diversified — 1.0%
3M Co.		6,050		471,477
Aica Kogyo Co. Ltd.		10,400		146,072
				617,549
Insurance — 3.5%
American International Group, Inc.		6,700		480,122
Cigna Corp.		1,800		236,826
Lincoln National Corp.		4,770		316,728
Metlife, Inc.(b)		7,850		463,229
Milano Assicurazioni SpA		11,870		96,309
The PMI Group, Inc.(b)		7,500		353,775
Swiss Reinsurance		2,280		192,828
				2,139,817

	Number of Shares		Market Value
Leisure & Entertainment — 0.6%
Sankyo Co. Ltd.		6,800	$	377,317
Lodging — 0.2%
Marriott International, Inc. Cl. A		3,050		145,546
Manufacturing — 0.5%
Aalberts Industries NV		3,925		338,538
Medical Supplies — 1.8%
Baxter International, Inc.		9,400		436,066
Boston Scientific Corp.(a)		18,000		309,240
Hogy Medical Co. Ltd.		3,900		151,070
Rhoen-Klinikum AG		3,889		188,133
				1,084,509
Metals & Mining — 5.3%
Canadian Natural Resources Ltd.		11,200		600,716
Cia Vale do Rio Doce Sponsored ADR (Brazil)(b)		23,400		614,250
Kloeckner & Co(a)		2,600		112,042
Maruichi Steel Tube Ltd.		9,800		270,527
Phelps Dodge Corp.		2,300		275,356
Sumitomo Metal Industries Ltd.		100,000		435,449
Tenaris SA ADR (Argentina)		7,940		396,127
Vallourec SA		2,018		581,494
				3,285,961
Oil & Gas — 1.1%
Hardman Resources Ltd.(a)		395,564		649,705
Pharmaceuticals — 3.0%
Biogen Idec, Inc.(a) (b)		5,400		265,626
Eli Lilly & Co.		7,300		380,330
GlaxoSmithKline PLC		6,285		165,980
Invitrogen Corp.(a)		4,100		232,019
Johnson & Johnson		3,000		198,060
Opg Group		1,655		194,015
Pfizer, Inc.		16,550		428,645
				1,864,675
Prepackaged Software — 1.0%
Microsoft Corp.		11,400		340,404
Oracle Corp.(a)		15,200		260,528
				600,932
Real Estate — 1.2%
Equity Residential REIT		4,600		233,450
Realogy Corp.(a)		7,750		234,980
Renta Corp. Real Estate SA(a)		5,532		248,661
				717,091

	Number of Shares		Market Value
Restaurants — 2.0%
McDonald's Corp.		7,800	$	345,774
Punch Taverns PLC		36,116		903,158
				1,248,932
Retail — 1.9%
CVS Corp.		12,720		393,175
Federated Department Stores, Inc.		3,100		118,203
Gr. Sarantis SA		10,140		107,315
Tiffany & Co.		6,850		268,794
Wal-Mart Stores, Inc.		5,800		267,844
				1,155,331
Telephone Utilities — 2.9%
Alltel Corp.		7,800		471,744
KT Corp.		8,220		410,032
Sprint Nextel Corp.		19,700		372,133
Verizon Communications, Inc.		10,300		383,572
Windstream Corp.		8,581		122,022
				1,759,503
Transportation — 1.9%
Bosch Corp.		30,000		158,024
Euronav SA		13,596		405,180
F.C.C. Co. Ltd.		26,300		636,703
				1,199,907
TOTAL COMMON STOCK (Cost $56,131,740)				59,348,259
PREFERRED STOCK — 1.8%
Automotive & Parts — 1.4%
Porsche AG(b)		680		862,905
Retail — 0.4%
Universo Online SA Preferred Stock		43,400		234,174
TOTAL PREFERRED STOCK (Cost $946,187)				1,097,079
TOTAL EQUITIES (Cost $57,077,927)				60,445,338
	Principal Amount
SHORT-TERM INVESTMENTS — 10.8%
Cash Equivalents — 9.4%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	144,276		144,276
American Beacon Money Market Fund(c)		49,827		49,827

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Global Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007	$	210,865	$	210,865
Bank of America 5.270% 01/09/2007		110,982		110,982
Bank of America 5.310% 03/08/2007		110,982		110,982
Bank of America 5.320% 02/16/2007		33,295		33,295
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007		66,589		66,589
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		221,963		221,963
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		144,276		144,276
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		55,491		55,491
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		110,982		110,982
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		110,982		110,982
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		33,295		33,295
BGI Institutional Money Market Fund(c)		104,844		104,844
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		166,473		166,473
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		55,491		55,491
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		55,491		55,491
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		204,206		204,206
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		166,473		166,473
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		55,491		55,491

	Principal Amount		Market Value
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007	$	110,982	$	110,982
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		110,982		110,982
Dreyfus Cash Management Plus Money Market Fund(c)		39,643		39,643
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		18,588		18,588
Federal Home Loan Bank Discount Note 5.207% 01/19/2007		28,961		28,961
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		110,982		110,982
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		44,393		44,393
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		166,472		166,472
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		166,472		166,472
Freddie Mac Discount Note 5.231% 01/23/2007		44,168		44,168
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		55,491		55,491
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		99,422		99,422
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		155,374		155,374
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		110,982		110,982
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		88,785		88,785
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		166,472		166,472

	Principal Amount		Market Value
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007	$	66,589	$	66,589
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		277,454		277,454
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		99,883		99,883
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		110,982		110,982
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		164,253		164,253
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007		110,982		110,982
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		22,196		22,196
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		55,491		55,491
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		88,785		88,785
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		221,963		221,963
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		166,472		166,472
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		44,393		44,393
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		382,845		382,845
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		57,711		57,711
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		133,178		133,178
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		66,589		66,589
				5,800,209

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Global Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Repurchase Agreement — 1.4%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)	$	834,089	$	834,089
TOTAL SHORT-TERM INVESTMENTS (Cost $6,634,298)				6,634,298
TOTAL INVESTMENTS — 109.1% (Cost $63,712,225)(f)				67,079,636
Other Assets/ (Liabilities) — (9.1%)				(5,577,885	)
NET ASSETS — 100.0%			$	61,501,751

Notes to Portfolio of Investments

ADR - American Depository Receipt

REIT - Real Estate Investment Trust

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $834,413. Collateralized by a U.S. Government Obligation with a rate of 8.63%, maturity date of 06/25/2014, and an aggregate market value, including accrued interest, of $875,794.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The remainder of this page is intentionally left blank.

The accompanying notes are an integral part of the financial statements.

MML Foreign Fund – Portfolio of Investments

December 31, 2006

	Number of Shares		Market Value
EQUITIES — 94.6%
COMMON STOCK — 94.6%
Aerospace & Defense — 1.0%
BAE Systems PLC		314,070	$	2,609,830
Air Transportation — 0.7%
Qantas Airways Ltd.		404,900		1,662,615
Apparel, Textiles & Shoes — 0.7%
Burberry Group PLC		148,462		1,869,631
Automotive & Parts — 2.4%
Bayerische Motoren Werke AG		49,381		2,820,117
Compagnie Generale des Etablissements Michelin Cl. B		34,130		3,257,819
				6,077,936
Autos & Housing — 0.9%
GKN PLC		242,496		1,315,323
Valeo SA		20,001		830,324
				2,145,647
Banking — 0.8%
Banco Santander Central Hispano SA		104,831		1,945,939
Banking, Savings & Loans — 11.2%
Centrica PLC		160,139		1,113,772
DBS Group Holdings Ltd.		167,653		2,470,612
Hana Financial Group, Inc.		38,920		2,041,165
HSBC Holdings PLC		141,600		2,598,066
Kookmin Bank Sponsored ADR (Korea)(a) (b)		32,681		2,635,396
Mega Financial Holding Co. Ltd.		1,577,000		1,157,248
Mitsubishi Tokyo Financial Group, Inc.		193		2,403,958
Nordea Bank AB		116,605		1,795,232
Rentokil Initial PLC		362,302		1,175,538
Royal Bank of Scotland Group PLC		59,512		2,317,452
Sumitomo Mitsui Financial Group, Inc.		269		2,747,163
UniCredito Italiano SpA		336,751		2,936,835
Unilever PLC		109,897		3,077,698
				28,470,135
Broadcasting, Publishing & Printing — 5.6%
British Sky Broadcasting Group PLC		297,224		3,042,890
Mediaset SpA		217,608		2,575,626

	Number of Shares		Market Value
Pearson PLC		202,544	$	3,056,375
Reed Elsevier NV		132,421		2,252,708
Thomson Multimedia SA		101,660		1,980,809
Yell Group PLC		109,227		1,221,288
				14,129,696
Chemicals — 1.0%
BASF AG		17,715		1,720,256
Lonza Group AG Registered		9,470		814,805
				2,535,061
Commercial Services — 1.9%
Group 4 Securicor PLC		834,730		3,076,200
Securitas Systems AB Cl. B(a)		73,842		297,021
Smiths Group PLC		70,659		1,371,971
				4,745,192
Communications — 5.0%
Eutelsat Communications		123,030		2,340,900
France Telecom SA		137,887		3,788,719
KT Corp.(a) (b)		22,985		582,670
Mobile Telesystems OJSC Sponsored ADR (Russia)		37,930		1,903,707
Telenor ASA		220,606		4,096,826
				12,712,822
Computers & Information — 0.1%
NEC Corp.		57,781		277,309
Consumer Services — 0.5%
Securitas AB Cl. B		73,842		1,141,244
Containers — 0.8%
Amcor Ltd.		362,922		2,078,872
Diversified Financial — 1.5%
Amvescap PLC		209,926		2,445,354
Nomura Holdings, Inc.		72,512		1,373,422
				3,818,776
Electric Utilities — 3.4%
E.ON AG		28,360		3,838,951
Gamesa Corporacion Tecnologica SA		85,643		2,341,196
Iberdrola SA		28,848		1,251,073
National Grid PLC		83,533		1,212,650
				8,643,870
Electrical Equipment & Electronics — 6.4%
Compal Electronics, Inc.		820,418		732,085
Electrocomponents PLC		151,624		862,937
Flextronics International Ltd.(a) (b)		85,990		987,165

	Number of Shares		Market Value
Koninklijke Philips Electronics NV		51,950	$	1,953,937
Mabuchi Motor Co Ltd.(b)		16,553		983,685
Olympus Corp.		52,210		1,645,300
Rolls-Royce Group PLC(a)		94,476		829,490
Samsung Electronics Co., Ltd.		5,259		3,444,266
Sony Corp.		52,235		2,241,709
Taiwan Semiconductor Manufacturing Co., Ltd.		604,604		1,254,352
Venture Corp. Ltd.		159,387		1,397,825
				16,332,751
Electronics — 1.0%
Hitachi Ltd.		183,604		1,147,696
Infineon Technologies AG(a)		95,567		1,338,543
				2,486,239
Energy — 5.8%
BP PLC		241,354		2,701,818
ENI SpA		100,938		3,388,366
Repsol YPF SA		76,421		2,631,385
Royal Dutch Shell PLC		111,664		3,949,123
Total SA		29,842		2,147,002
				14,817,694
Entertainment & Leisure — 1.6%
FUJIFILM Holdings Corp.		73,526		3,038,028
Husqvarna AB Cl. B(a)		59,643		928,667
				3,966,695
Financial Services — 5.2%
ING Groep NV		87,922		3,887,564
KKR Private Equity Investors LP		106,833		2,441,134
Old Mutual PLC		870,926		2,966,565
Sbm Offshore NV		25,312		868,123
Shinhan Financial Group Co. Ltd.(a)		39,560		2,027,143
Shire PLC		50,681		1,048,987
				13,239,516
Food Retailers — 0.5%
Morrison (WM) Supermarkets		268,761		1,338,929
Foods — 2.7%
Compass Group PLC		652,012		3,700,256
Nestle SA		9,009		3,189,117
				6,889,373

(Continued)

The accompanying notes are an integral part of the financial statements.

MML Foreign Fund – Portfolio of Investments (Continued)

	Number of Shares		Market Value
Forest Products & Paper — 2.0%
Norske Skogindustrier ASA(b)		148,439	$	2,541,923
Stora Enso Oyj Cl. R		154,009		2,409,687
				4,951,610
Industrial - Diversified — 2.7%
Hutchison Whampoa, Ltd.		189,291		1,918,144
Lite-on Technology Corp.		867,242		1,176,236
Siemens AG(b)		37,656		3,724,340
				6,818,720
Industrial Services — 2.0%
Suez SA(b)		47,044		2,429,921
UPM-Kymmene OYJ(b)		103,510		2,595,944
				5,025,865
Insurance — 6.4%
ACE Ltd.		52,664		3,189,858
Aviva PLC		192,220		3,092,201
AXA SA		61,643		2,479,932
Muenchener Rueckversicherungs AG		13,290		2,278,832
Sompo Japan Insurance Inc.		92,515		1,133,977
Swiss Reinsurance		26,960		2,280,101
XL Capital Ltd. Cl. A		23,296		1,677,778
				16,132,679
Manufacturing — 0.6%
Vestas Wind Systems A/S(a)		36,612		1,533,068
Metals & Mining — 0.9%
Cia Vale do Rio Doce Sponsored ADR (Brazil)(b)		37,436		982,695
POSCO(b)		15,301		1,264,934
				2,247,629
Pharmaceuticals — 5.5%
Celesio AG		63,560		3,400,990
GlaxoSmithKline PLC		163,714		4,323,514
Sanofi-Aventis		36,828		3,383,551
Sappi Ltd.		62,414		1,046,683
Takeda Pharmaceutical Co., Ltd.		24,346		1,674,656
				13,829,394
Prepackaged Software — 0.7%
Check Point Software Technologies Ltd.(a)		86,039		1,885,975
Real Estate — 1.2%
Cheung Kong Holdings		251,215		3,082,667
Retail — 1.3%
Alliance Boots PLC		165,394		2,711,162
Kingfisher PLC		131,004		611,914
				3,323,076

	Number of Shares		Market Value
Telecommunications — 2.0%
China Telecom Corp. Ltd.		4,991,643	$	2,717,930
Telefonos de Mexico SA de CV Cl. L Sponsored ADR (Mexico)(b)		85,303		2,408,957
				5,126,887
Telephone Utilities — 6.2%
BCE, Inc.(b)		76,049		2,060,788
Chunghwa Telecom Co. Ltd. Sponsored ADR (Taiwan)		91,744		1,810,109
Singapore Telecommunications Ltd.		1,076,000		2,299,098
Tele Norte Leste Participacoes SA(b)		84,175		1,255,891
Telefonica SA Sponsored ADR (Spain)		64,685		4,123,669
Vodafone Group PLC, Sponsored ADR (United Kingdom)(b)		147,973		4,110,690
				15,660,245
Transportation — 1.9%
Deutsche Post AG		129,321		3,887,668
TUI AG(b)		48,560		967,904
				4,855,572
Water Companies — 0.5%
Cia de Saneamento Basico do Estado de Sao Paulo, ADR (Brazil)(b)		38,920		1,317,053
TOTAL EQUITIES (Cost $217,436,501)				239,726,212
	Principal Amount
SHORT-TERM INVESTMENTS — 12.6%
Cash Equivalents — 6.9%(d)
Abbey National PLC Eurodollar Time Deposit 5.280% 01/05/2007	$	433,408	$	433,408
American Beacon Money Market Fund(c)		149,680		149,680
BancoBilbao Vizcaya Argentaria SA Eurodollar Time Deposit 5.310% 01/03/2007		633,445		633,445
Bank of America 5.270% 01/09/2007		333,392		333,392
Bank of America 5.310% 03/08/2007		333,392		333,392
Bank of America 5.320% 02/16/2007		100,018		100,018

	Principal Amount		Market Value
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 01/30/2007	$	200,035	$	200,035
Bank of Nova Scotia Eurodollar Time Deposit 5.290% 02/06/2007		666,784		666,784
Bank of Nova Scotia Eurodollar Time Deposit 5.300% 02/27/2007		433,410		433,410
The Bank of the West Eurodollar Time Deposit 5.285% 01/17/2007		166,696		166,696
Barclays Eurodollar Time Deposit 5.300% 01/03/2007		333,392		333,392
Barclays Eurodollar Time Deposit 5.310% 02/20/2007		333,392		333,392
Barclays Eurodollar Time Deposit 5.320% 02/13/2007		100,018		100,018
BGI Institutional Money Market Fund(c)		314,953		314,953
Calyon Eurodollar Time Deposit 5.290% 03/05/2007		500,088		500,088
Calyon Eurodollar Time Deposit 5.310% 02/16/2007		166,696		166,696
Calyon Eurodollar Time Deposit 5.310% 02/22/2007		166,696		166,696
Canadian Imperial Bank of Commerce Eurodollar Time Deposit 5.310% 01/29/2007		613,441		613,441
Citigroup Eurodollar Time Deposit 5.305% 03/05/2007		500,088		500,088
Citigroup Eurodollar Time Deposit 5.310% 03/16/2007		166,696		166,696
Commonwealth Bank of Australia Commercial Paper 5.291% 01/08/2007		333,392		333,392
Dexia Group Eurodollar Time Deposit 5.285% 01/16/2007		333,392		333,392
Dreyfus Cash Management Plus Money Market Fund(c)		119,087		119,087
Federal Home Loan Bank Discount Note 5.145% 01/03/2007		55,839		55,839

(Continued)

The accompanying notes are an integral part of the financial statements.

100

MML Foreign Fund – Portfolio of Investments (Continued)

	Principal Amount		Market Value
Federal Home Loan Bank Discount Note 5.207% 01/19/2007	$	86,999	$	86,999
First Tennessee National Corp. Eurodollar Time Deposit 5.290% 01/18/2007		333,392		333,392
Fortis Bank Eurodollar Time Deposit 5.295% 01/02/2007		133,357		133,357
Fortis Bank Eurodollar Time Deposit 5.300% 01/24/2007		500,088		500,088
Fortis Bank Eurodollar Time Deposit 5.300% 01/26/2007		500,088		500,088
Freddie Mac Discount Note 5.231% 01/23/2007		132,681		132,681
General Electric Capital Corp. Commercial Paper 5.296% 01/26/2007		166,696		166,696
Goldman Sachs Financial Square Prime Obligations Money Market Fund(c)		298,667		298,667
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/08/2007		466,749		466,749
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.300% 01/25/2007		333,392		333,392
HBOS Halifax Bank of Scotland Eurodollar Time Deposit 5.305% 03/14/2007		266,714		266,714
Lloyds TSB Bank Eurodollar Time Deposit 5.300% 02/26/2007		500,088		500,088
Marshall & Ilsley Bank Eurodollar Time Deposit 5.300% 03/19/2007		200,035		200,035
Rabobank Nederland Eurodollar Time Deposit 5.250% 01/02/2007		833,480		833,480
Rabobank Nederland Eurodollar Time Deposit 5.300% 03/05/2007		300,053		300,053
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/14/2007		333,392		333,392
Royal Bank of Canada Eurodollar Time Deposit 5.310% 02/15/2007		493,420		493,420

	Principal Amount		Market Value
Royal Bank of Scotland Eurodollar Time Deposit 5.280% 01/11/2007	$	333,392	$	333,392
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 01/16/2007		66,678		66,678
Royal Bank of Scotland Eurodollar Time Deposit 5.290% 02/09/2007		166,696		166,696
Royal Bank of Scotland Eurodollar Time Deposit 5.310% 01/11/2007		266,714		266,714
Societe Generale Eurodollar Time Deposit 5.270% 01/19/2007		666,784		666,784
Societe Generale Eurodollar Time Deposit 5.290% 02/01/2007		500,088		500,088
Societe Generale Eurodollar Time Deposit 5.313% 01/02/2007		133,357		133,357
Svenska Handlesbanken Eurodollar Time Deposit 5.250% 01/02/2007		1,150,078		1,150,078
UBS AG Eurodollar Time Deposit 5.290% 01/02/2007		173,364		173,364
UBS AG Eurodollar Time Deposit 5.300% 01/04/2007		400,070		400,070
UBS AG Eurodollar Time Deposit 5.300% 01/05/2007		200,035		200,035
				17,423,977
Repurchase Agreement — 5.7%
Investors Bank & Trust Company Repurchase Agreement, dated 12/29/2006, 3.50%, due 01/02/2007(e)	$	14,592,312		14,592,312
TOTAL SHORT-TERM INVESTMENTS (Cost $32,016,289)				32,016,289
TOTAL INVESTMENTS — 107.2% (Cost $249,452,790)(f)				271,742,501
Other Assets/ (Liabilities) — (7.2%)				(18,230,382	)
NET ASSETS — 100.0%			$	253,512,119

Notes to Portfolio of Investments

ADR - American Depository Receipt

(a) Non-income producing security.

(b) Denotes all or a portion of security on loan. (Note 2).

(d) Represents investments of security lending collateral. (Note 2).

(e) Maturity value of $14,597,987. Collateralized by a US Government Obligation with a rate of 4.104%, maturity date of 04/01/2035, and an aggregate market value, including accrued interest, of $15,321,928.

(f) See Note 6 for aggregate cost for Federal tax purposes.

The accompanying notes are an integral part of the financial statements.

101

MML Series Investment Fund – Financial Statements

Statement of Assets and Liabilities

December 31, 2006

	MML Asset Allocation Fund			MML Equity Income Fund			MML Income & Growth Fund			MML Growth & Income Fund			MML Blue Chip Growth Fund			MML Large Cap Growth Fund			MML Concentrated Growth Fund
Assets:
Investments, at value (Note 2)(a)	$	260,233,095		$	276,667,531		$	180,130,853		$	298,329,690		$	54,379,367		$	77,116,608		$	81,902,441
Short-term investments, at value (Note 2)(b)		20,552,978			38,649,647			18,105,596			25,438,940			4,939,788			4,677,473			12,362,766
Total investments(c)		280,786,073			315,317,178			198,236,449			323,768,630			59,319,155			81,794,081			94,265,207
Cash		-			-			-			-			-			1,239			-
Foreign currency, at value(d)		4,401			-			-			-			-			-			-
Receivables from
Investments sold		99,183			1,184,432			23,472			188,599			22,602			15,631			-
Investment Adviser (Note 3)		18,524			-			10,315			17,237			6,194			6,551			17,657
Fund shares sold		88,894			160,495			37,749			59,448			49,633			2,568			7,191
Interest and dividends		1,189,150			437,823			272,943			423,545			46,571			48,860			55,064
Foreign taxes withheld		5,143			7,154			-			8,878			434			-			-
Total assets		282,191,368			317,107,082			198,580,928			324,466,337			59,444,589			81,868,930			94,345,119
Liabilities:
Payables for:
Investments purchased		146,399			592,995			-			387,762			8,204			54,193			-
Open forward foreign currency contracts (Note 2)		1,879			-			-			-			-			-			-
Fund shares repurchased		77,032			85,411			64,555			140,433			252			128,433			51,265
Securities on loan (Note 2)		15,574,788			23,836,678			17,566,662			21,114,475			4,619,007			3,713,715			11,467,764
Directors' fees and expenses (Note 3)		16,042			16,709			10,782			18,264			3,222			4,695			5,096
Affiliates (Note 3):
Investment management fees		124,677			182,829			99,636			129,379			34,799			43,410			42,768
Administration fees		-			-			-			-			-			-			11,524
Accrued expense and other liabilities		38,144			35,426			35,287			35,476			33,067			32,604			32,837
Total liabilities		15,978,961			24,750,048			17,776,922			21,825,789			4,698,551			3,977,050			11,611,254
Net assets	$	266,212,407		$	292,357,034		$	180,804,006		$	302,640,548		$	54,746,038		$	77,891,880		$	82,733,865
Net assets consist of:
Paid-in capital	$	258,736,023		$	267,974,859		$	163,765,415		$	292,453,039		$	51,757,019		$	78,327,617		$	81,824,335
Undistributed net investment income (distributions in excess of net investment income)		(12,127	)		(6,722	)		12,596			(4,075	)		(1,276	)		(618	)		(2,090	)
Accumulated net realized gain (loss) on investments		462,398			1,105,340			(985,363	)		452,035			(905,302	)		(3,281,360	)		(504,668	)
Net unrealized appreciation (depreciation) on investments		7,026,113			23,283,557			18,011,358			9,739,549			3,895,597			2,846,241			1,416,288
Net assets	$	266,212,407		$	292,357,034		$	180,804,006		$	302,640,548		$	54,746,038		$	77,891,880		$	82,733,865
Shares outstanding		25,856,548			26,643,868			16,397,987			29,221,756			5,175,570			7,786,047			-
Net asset value, offering price and redemption price per share	$	10.30		$	10.97		$	11.03		$	10.36		$	10.58		$	10.00		$	-
(a) Cost of investments - unaffiliated issuers:	$	253,206,405		$	253,384,147		$	162,119,495		$	288,590,141		$	50,483,757		$	74,270,367		$	80,486,153
(b) Cost of short-term investments:	$	20,552,978		$	38,649,647		$	18,105,596		$	25,438,940		$	4,939,788		$	4,677,473		$	12,362,766
(c) Securities on loan with market value of:	$	15,074,631		$	22,961,432		$	16,958,899		$	20,461,521		$	4,458,778		$	3,610,640		$	11,071,868
(d) Cost of foreign currency:	$	4,398		$	-		$	-		$	-		$	-		$	-		$	-

The accompanying notes are an integral part of the financial statements.

102

103

MML Series Investment Fund – Financial Statements (Continued)

Statement of Assets and Liabilities

December 31, 2006

	MML Asset Allocation Fund		MML Equity Income Fund		MML Income & Growth Fund		MML Growth & Income Fund		MML Blue Chip Growth Fund		MML Large Cap Growth Fund		MML Concentrated Growth Fund
Class I shares:
Net assets	$	-	$	-	$	-	$	-	$	-	$	-	$	18,031,544
Shares outstanding		-		-		-		-		-		-		1,765,882
Net asset value and redemption price per share	$	-	$	-	$	-	$	-	$	-	$	-	$	10.21
Class II shares:
Net assets	$	-	$	-	$	-	$	-	$	-	$	-	$	64,702,321
Shares outstanding		-		-		-		-		-		-		6,336,073
Net asset value, offering price and redemption price per share	$	-	$	-	$	-	$	-	$	-	$	-	$	10.21

The accompanying notes are an integral part of the financial statements.

104

105

MML Series Investment Fund – Financial Statements (Continued)

Statement of Assets and Liabilities

December 31, 2006

	MML Mid Cap Value Fund			MML Mid Cap Growth Fund			MML Small Cap Value Fund			MML Small Cap Index Fund			MML Global Fund			MML Foreign Fund
Assets:
Investments, at value (Note 2)(a)	$	341,945,942		$	277,021,784		$	205,156,977		$	67,967,867		$	60,445,338		$	239,726,212
Short-term investments, at value (Note 2)(b)		46,185,600			75,225,507			34,503,205			13,913,399			6,634,298			32,016,289
Total investments(c)		388,131,542			352,247,291			239,660,182			81,881,266			67,079,636			271,742,501
Foreign currency, at value(d)		744,619			-			-			-			-			32,362
Receivables from:
Investments sold		6,486,308			374,280			-			187,119			567,002			6,802
Investment Adviser (Note 3)		-			-			-			4,224			26,483			13,287
Fund shares sold		91,899			16,211			250,103			31,675			1,226			212,935
Interest and dividends		855,616			104,399			433,758			74,111			95,436			273,040
Broker for collateral held for open futures contracts (Note 2)		-			-			229,647			-			-			-
Foreign taxes withheld		4,060			-			-			-			6,104			21,778
Total assets		396,314,044			352,742,181			240,573,690			82,178,395			67,775,887			272,302,705
Liabilities:
Payables for:
Investments purchased		6,100,078			122,573			-			206,306			319,785			1,074,576
Fund shares repurchased		411,150			322,756			14,378			46,326			55,170			40,251
Variation margin on open futures contracts (Note 2)		-			-			8,272			7,512			-			-
Securities on loan (Note 2)		30,581,344			66,904,205			33,135,590			13,074,524			5,800,209			17,423,977
Directors' fees and expenses (Note 3)		20,955			17,413			11,691			4,135			3,603			14,109
Affiliates (Note 3):
Investment management fees		253,479			189,104			129,647			20,663			31,138			186,226
Administration fees		-			-			-			-			10,154			-
Due to custodian		-			-			-			-			13,438			-
Accrued expense and other liabilities		41,030			37,614			35,182			36,127			40,639			51,447
Total liabilities		37,408,036			67,593,665			33,334,760			13,395,593			6,274,136			18,790,586
Net assets	$	358,906,008		$	285,148,516		$	207,238,930		$	68,782,802		$	61,501,751		$	253,512,119
Net assets consist of:
Paid-in capital	$	333,329,676		$	285,192,569		$	197,296,814		$	68,299,497		$	58,838,827		$	231,367,611
Undistributed net investment income (distributions in excess of net investment income)		(3,285	)		(12,799	)		26,354			17,434			(6,590	)		(144,516	)
Accumulated net realized gain (loss) on investments		6,861,744			(2,397,175	)		(9,136,629	)		(33,939	)		(698,463	)		-
Net unrealized appreciation (depreciation) on investments		18,717,873			2,365,921			19,052,391			499,810			3,367,977			22,289,024
Net assets	$	358,906,008		$	285,148,516		$	207,238,930		$	68,782,802		$	61,501,751		$	253,512,119
Shares outstanding		33,213,943			28,390,673			19,827,877			6,809,272			-			23,054,858
Net asset value, offering price and redemption price per share	$	10.81		$	10.04		$	10.45		$	10.10		$	-		$	11.00
(a) Cost of investments - unaffiliated issuers:	$	323,074,137		$	274,655,807		$	186,096,266		$	67,464,163		$	57,077,927		$	217,436,501
(b) Cost of short-term investments:	$	46,185,600		$	75,225,507		$	34,503,205		$	13,913,399		$	6,634,298		$	32,016,289
(c) Securities on loan with market value of:	$	29,239,167		$	64,624,515		$	31,902,174		$	12,611,938		$	5,574,174		$	16,623,575
(d) Cost of foreign currency:	$	906,083		$	-		$	-		$	-		$	-		$	32,120

The accompanying notes are an integral part of the financial statements.

106

107

MML Series Investment Fund – Financial Statements (Continued)

Statement of Assets and Liabilities

December 31, 2006

	MML Mid Cap Value Fund		MML Mid Cap Growth Fund		MML Small Cap Value Fund		MML Small Cap Index Fund		MML Global Fund		MML Foreign Fund
Class I shares:
Net assets	$	-	$	-	$	-	$	-	$	9,698,223	$	-
Shares outstanding		-		-		-		-		922,233		-
Net asset value and redemption price per share	$	-	$	-	$	-	$	-	$	10.52	$	-
Class II shares:
Net assets	$	-	$	-	$	-	$	-	$	51,803,528	$	-
Shares outstanding		-		-		-		-		4,925,305		-
Net asset value, offering price and redemption price per share	$	-	$	-	$	-	$	-	$	10.52	$	-

The accompanying notes are an integral part of the financial statements.

108

109

MML Series Investment Fund – Financial Statements (Continued)

Statement of Operations

For the Period Ended December 31, 2006

	MML Asset Allocation Fund*			MML Equity Income Fund*			MML Income & Growth Fund*			MML Growth & Income Fund*			MML Blue Chip Growth Fund*			MML Large Cap Growth Fund*			MML Concentrated Growth Fund*
Investment Income (Note 2):
Dividends (a)	$	1,781,915		$	3,784,968		$	2,968,473		$	2,995,584		$	397,162		$	408,152		$	427,524
Interest		3,259,464			269,387			2,779			200,920			10,612			36,996			53,043
Securities lending net income		17,716			16,231			16,180			21,374			5,591			14,799			5,070
Total investment income		5,059,095			4,070,586			2,987,432			3,217,878			413,365			459,947			485,637
Expenses (Note 3):
Investment management fees (Note 3)		935,584			1,237,417			765,559			989,478			254,713			338,564			334,687
Custody fees		25,710			18,476			24,490			19,108			9,966			8,929			6,781
Trustee reporting		2,542			2,543			2,542			2,542			2,542			2,542			2,542
Audit and legal fees		35,310			33,649			33,787			34,592			32,327			32,218			32,819
Proxy fees		385			385			385			385			385			385			385
Shareholder reporting fees		5,130			4,808			3,586			6,006			1,015			1,598			1,709
Directors' fees (Note 3)		31,185			29,835			21,923			36,623			6,288			9,930			10,897
		1,035,846			1,327,113			852,272			1,088,734			307,236			394,166			389,820
Administration fees (Note 3)
Class I		-			-			-			-			-			-			28,235
Class II		-			-			-			-			-			-			61,623
Total expenses		1,035,846			1,327,113			852,272			1,088,734			307,236			394,166			479,678
Expenses waived (Note 3)		(66,355	)		-			(27,865	)		(59,695	)		(18,559	)		(13,926	)		(99,747	)
Net expenses		969,491			1,327,113			824,407			1,029,039			288,677			380,240			379,931
Net investment income		4,089,604			2,743,473			2,163,025			2,188,839			124,688			79,707			105,706
Realized and unrealized gain (loss):
Net realized gain (loss) on:
Investment transactions		832,799			1,914,976			(1,010,580	)		459,272			(905,302	)		(3,281,360	)		(444,772	)
Closed futures contracts		-			-			-			-			-			-			(59,896	)
Foreign currency transactions		(30,143	)		(106,531	)		-			-			(2,629	)		-			-
Net realized gain (loss)		802,656			1,808,445			(1,010,580	)		459,272			(907,931	)		(3,281,360	)		(504,668	)
Net change in unrealized appreciation (depreciation) on:
Investments		7,026,690			23,283,384			18,011,358			9,739,549			3,895,610			2,846,241			1,416,288
Translation of assets and liabilities in foreign currencies		(577	)		173			-			-			(13	)		-			-
Net unrealized appreciation (depreciation)		7,026,113			23,283,557			18,011,358			9,739,549			3,895,597			2,846,241			1,416,288
Net realized and unrealized gain (loss)		7,828,769			25,092,002			17,000,778			10,198,821			2,987,666			(435,119	)		911,620
Net increase (decrease) in net assets resulting from operations	$	11,918,373		$	27,835,475		$	19,163,803		$	12,387,660		$	3,112,354		$	(355,412	)	$	1,017,326
(a) Net of withholding tax of:	$	22,085		$	14,314		$	3,641		$	37,557		$	2,210		$	7,127		$	-

* Funds commenced operations on May 1, 2006.

The accompanying notes are an integral part of the financial statements.

110

111

MML Series Investment Fund – Financial Statements (Continued)

Statement of Operations

For the Period Ended December 31, 2006

	MML Mid Cap Value Fund*			MML Mid Cap Growth Fund*			MML Small Cap Value Fund*			MML Small Cap Index Fund*			MML Global Fund*			MML Foreign Fund*
Investment Income (Note 2):
Dividends (a)	$	4,707,787		$	1,116,413		$	2,272,776		$	440,298		$	823,907		$	3,560,686
Interest		286,980			196,015			77,723			17,127			48,252			443,178
Securities lending net income		26,405			87,364			69,228			22,101			5,050			18,498
Total investment income		5,021,172			1,399,792			2,419,727			479,526			877,209			4,022,362
Expenses (Note 3):
Investment management fees (Note 3)		1,800,354			1,493,254			854,965			159,912			238,372			1,224,564
Custody fees		48,393			40,361			30,006			31,271			60,811			127,247
Trustee reporting		2,542			2,543			2,542			2,542			2,542			2,542
Audit and legal fees		35,058			35,278			32,926			32,066			32,781			34,008
Proxy fees		385			385			385			385			385			385
Shareholder reporting fees		6,355			5,956			3,292			1,395			1,213			3,977
Directors' fees (Note 3)		39,098			36,797			20,809			8,522			7,522			24,793
		1,932,185			1,614,574			944,925			236,093			343,626			1,417,516
Administration fees (Note 3)
Class I		-			-			-			-			16,332			-
Class II		-			-			-			-			61,011			-
Total expenses		1,932,185			1,614,574			944,925			236,093			420,969			1,417,516
Expenses waived (Note 3)		-			-			-			(30,483	)		(172,808	)		(14,237	)
Net expenses		1,932,185			1,614,574			944,925			205,610			248,161			1,403,279
Net investment income (loss)		3,088,987			(214,782	)		1,474,802			273,916			629,048			2,619,083
Realized and unrealized gain (loss):
Net realized gain (loss) on:
Investment transactions		13,922,413			(2,397,175	)		(8,746,753	)		(50,098	)		(682,158	)		185,422
Closed futures contracts		-			-			(466,815	)		37,129			(17,919	)		-
Foreign currency transactions		10,669			(1,506	)		-			-			(4,375	)		(150,470	)
Net realized gain (loss)		13,933,082			(2,398,681	)		(9,213,568	)		(12,969	)		(704,452	)		34,952
Net change in unrealized appreciation (depreciation) on:
Investments		18,871,805			2,365,977			19,060,711			503,704			3,367,411			22,289,711
Open futures contracts		-			-			(8,320	)		(3,894	)		-			-
Translation of assets and liabilities in foreign currencies		(153,932	)		(56	)		-			-			566			(687	)
Net unrealized appreciation (depreciation)		18,717,873			2,365,921			19,052,391			499,810			3,367,977			22,289,024
Net realized and unrealized gain (loss)		32,650,955			(32,760	)		9,838,823			486,841			2,663,525			22,323,976
Net increase (decrease) in net assets resulting from operations	$	35,739,942		$	(247,542	)	$	11,313,625		$	760,757		$	3,292,573		$	24,943,059
(a) Net of withholding tax of:	$	25,264		$	10,876		$	-		$	68		$	27,779		$	240,477

* Funds commenced operations on May 1, 2006.

The accompanying notes are an integral part of the financial statements.

112

113

MML Series Investment Fund – Financial Statements (Continued)

Statement of Changes in Net Assets

	MML Asset Allocation Fund			MML Equity Income Fund			MML Income & Growth Fund			MML Growth & Income Fund			MML Blue Chip Growth Fund			MML Large Cap Growth Fund			MML Concentrated Growth Fund
	Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*
Increase (Decrease) in Net Assets
Operations
Net investment income (loss)	$	4,089,604		$	2,743,473		$	2,163,025		$	2,188,839		$	124,688		$	79,707		$	105,706
Net realized gain (loss) on investment transactions		802,656			1,808,445			(1,010,580	)		459,272			(907,931	)		(3,281,360	)		(504,668	)
Net change in unrealized appreciation (depreciation) on investments		7,026,113			23,283,557			18,011,358			9,739,549			3,895,597			2,846,241			1,416,288
Net increase (decrease) in net assets resulting from operations		11,918,373			27,835,475			19,163,803			12,387,660			3,112,354			(355,412	)		1,017,326
Distributions to shareholders (Note 2)
From net investment income:		(4,139,877	)		(2,641,992	)		(2,125,212	)		(2,200,151	)		(123,335	)		(80,325	)		-
Class I		-			-			-			-			-			-			(15,355	)
Class II		-			-			-			-			-			-			(92,441	)
Total distributions from net investment income		(4,139,877	)		(2,641,992	)		(2,125,212	)		(2,200,151	)		(123,335	)		(80,325	)		(107,796	)
Tax return of capital		-			-			(89,214	)		-			(2,984	)		-			-
Class I		-			-			-			-			-			-			(997	)
Class II		-			-			-			-			-			-			(6,001	)
From net realized gains		(302,112	)		(811,309	)		-			-			-			-			-
Net fund share transactions (Note 5)		258,736,023			267,974,860			163,854,629			292,453,039			51,760,003			78,327,617			-
Class I		-			-			-			-			-			-			17,795,274
Class II		-			-			-			-			-			-			64,036,059
Increase in net assets from fund share transactions		258,736,023			267,974,860			163,854,629			292,453,039			51,760,003			78,327,617			81,831,333
Total increase (decrease) in net assets		266,212,407			292,357,034			180,804,006			302,640,548			54,746,038			77,891,880			82,733,865
Net assets
End of year	$	266,212,407		$	292,357,034		$	180,804,006		$	302,640,548		$	54,746,038		$	77,891,880		$	82,733,865
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(12,127	)	$	(6,722	)	$	12,596		$	(4,075	)	$	(1,276	)	$	(618	)	$	(2,090	)

* Funds commenced operations on May 1, 2006.

The accompanying notes are an integral part of the financial statements.

114

115

MML Series Investment Fund – Financial Statements (Continued)

Statement of Changes in Net Assets

	MML Mid Cap Value Fund			MML Mid Cap Growth Fund			MML Small Cap Value Fund			MML Small Cap Index Fund			MML Global Fund			MML Foreign Fund
	Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*			Period ended December 31, 2006*
Increase (Decrease) in Net Assets
Operations
Net investment income (loss)	$	3,088,987		$	(214,782	)	$	1,474,802		$	273,916		$	629,048		$	2,619,083
Net realized gain (loss) on investment transactions		13,933,082			(2,398,681	)		(9,213,568	)		(12,969	)		(704,452	)		34,952
Net change in unrealized appreciation (depreciation) on investments		18,717,873			2,365,921			19,052,391			499,810			3,367,977			22,289,024
Net increase (decrease) in net assets resulting from operations		35,739,942			(247,542	)		11,313,625			760,757			3,292,573			24,943,059
Distributions to shareholders (Note 2)
From net investment income:		(3,072,499	)		-			(1,371,509	)		(277,452	)		-			(2,630,744	)
Class I		-			-			-			-			(96,142	)		-
Class II		-			-			-			-			(539,189	)		-
Total distributions from net investment income		(3,072,499	)		-			(1,371,509	)		(277,452	)		(635,331	)		(2,630,744	)
Tax return of capital		-			-			(22,007	)					-			(82,071	)
Class I		-			-			-						-			-
Class II		-			-			-						-			-
From net realized gains		(7,091,111	)		-			-			-			-			(167,807	)
Net fund share transactions (Note 5)		333,329,676			285,396,058			197,318,821			68,299,497			-			231,449,682
Class I		-			-			-			-			9,212,901			-
Class II		-			-			-			-			49,631,608			-
Increase in net assets from fund share transactions		333,329,676			285,396,058			197,318,821			68,299,497			58,844,509			231,449,682
Total increase (decrease) in net assets		358,906,008			285,148,516			207,238,930			68,782,802			61,501,751			253,512,119
Net assets
End of year	$	358,906,008		$	285,148,516		$	207,238,930		$	68,782,802		$	61,501,751		$	253,512,119
Undistributed net investment income (distributions in excess of net investment income) included in net assets at the end of the year	$	(3,285	)	$	(12,799	)	$	26,354		$	17,434		$	(6,590	)	$	(144,516	)

* Funds commenced operations on May 1, 2006.

The accompanying notes are an integral part of the financial statements.

116

117

MML Asset Allocation Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.16	***
Net realized and unrealized gain (loss) on investments		0.31
Total income from investment operations		0.47
Less distributions to shareholders:
From net investment income		(0.16	)
From net realized gains		(0.01	)
Total distributions		(0.17	)
Net asset value, end of period	$	10.30
Total Return (a)		4.74	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	266,212
Ratio of expenses to average daily net assets:
Before expense waiver		0.61	% *
After expense waiver		0.57	% *#
Net investment income (loss) to average daily net assets		2.40	% *
Portfolio turnover rate		38	% **

* Annualized.

** Percentages represent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

(a) Total return information shown in the Financial Highlights table does not reflect expenses that apply at the separate account level or to related insurance products. Inclusion of these charges would reduce the total return figures for the period above.

The accompanying notes are an integral part of the financial statements.

118

MML Equity Income Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.11	***
Net realized and unrealized gain (loss) on investments		0.99
Total income from investment operations		1.10
Less distributions to shareholders:
From net investment income		(0.10	)
From net realized gains		(0.03	)
Total distributions		(0.13	)
Net asset value, end of period	$	10.97
Total Return (a)		11.01	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	292,357
Net expenses to average daily net assets		0.80	% *
Net investment income (loss) to average daily net assets		1.66	% *
Portfolio turnover rate		12	% **

* Annualized.

** Percentages respresent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

119

MML Income & Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.13	***
Net realized and unrealized gain (loss) on investments		1.04
Total income from investment operations		1.17
Less distributions to shareholders:
From net investment income		(0.14	)
Net asset value, end of period	$	11.03
Total Return (a)		11.66	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	180,804
Ratio of expenses to average daily net assets:
Before expense waiver		0.72	% *
After expense waiver		0.70	% *#
Net investment income (loss) to average daily net assets		1.84	% *
Portfolio turnover rate		38	% **

* Annualized.

** Percentages represent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

120

MML Growth & Income Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.07	***
Net realized and unrealized gain (loss) on investments		0.37
Total income from investment operations		0.44
Less distributions to shareholders:
From net investment income		(0.08	)
Net asset value, end of period	$	10.36
Total Return (a)		4.35	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	302,641
Ratio of expenses to average daily net assets:
Before expense waiver		0.55	% *
After expense waiver		0.52	% *#
Net investment income (loss) to average daily net assets		1.11	% *
Portfolio turnover rate		22	% **

* Annualized.

** Percentage represents results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

121

MML Blue Chip Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.02	***
Net realized and unrealized gain (loss) on investments		0.58
Total income from investment operations		0.60
Less distributions to shareholders:
From net investment income		(0.02	)
Net asset value, end of period	$	10.58
Total Return (a)		6.04	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	54,746
Ratio of expenses to average daily net assets:
Before expense waiver		0.90	% *
After expense waiver		0.85	% *#
Net investment income (loss) to average daily net assets		0.37	% *
Portfolio turnover rate		24	% **

* Annualized.

** Percentage represents results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

122

MML Large Cap Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.01	***
Net realized and unrealized gain (loss) on investments		(0.00	)†
Total income from investment operations		0.01
Less distributions to shareholders:
From net investment income		(0.01	)
Net asset value, end of period	$	10.00
Total Return (a)		0.10	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	77,892
Ratio of expenses to average daily net assets:
Before expense waiver		0.76	% *
After expense waiver		0.73	% *#
Net investment income (loss) to average daily net assets		0.15	% *
Portfolio turnover rate		61	% **

* Annualized.

** Percentage represents the results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

† Net realized and unrealized gain (loss) on investments is less than $0.01.

The accompanying notes are an integral part of the financial statements.

123

MML Concentrated Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Class I
	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.01	***
Net realized and unrealized gain (loss) on investments		0.21
Total income from investment operations		0.22
Less distributions to shareholders:
From net realized gains		(0.01	)
Net asset value, end of period	$	10.21
Total Return (a)		2.19	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	18,032
Ratio of expenses to average daily net assets:
Before expense waiver		0.94	% *
After expense waiver		0.76	% *#
Net investment income (loss) to average daily net assets		0.11	% *
Portfolio turnover rate		43	% **
	Class II
	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.01	***
Net realized and unrealized gain (loss) on investments		0.22
Total income from investment operations		0.23
Less distributions to shareholders:
From net realized gains		(0.02	)
Net asset value, end of period	$	10.21
Total Return (a)		2.25	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	64,702
Ratio of expenses to average daily net assets:
Before expense waiver		0.84	% *
After expense waiver		0.66	% *#
Net investment income (loss) to average daily net assets		0.21	% *
Portfolio turnover rate		43	% **

* Annualized.

** Percentage represents results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

124

MML Mid Cap Value Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.10	***
Net realized and unrealized gain (loss) on investments		1.03
Total income from investment operations		1.13
Less distributions to shareholders:
From net investment income		(0.10	)
From net realized gains		(0.22	)
Total distributions		(0.32	)
Net asset value, end of period	$	10.81
Total Return (a)		11.23	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	358,906
Net expenses to average daily net assets		0.90	% *
Net investment income (loss) to average daily net assets		1.44	% *
Portfolio turnover rate		173	% **

* Annualized.

** Percentage represents results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

125

MML Mid Cap Growth Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		(0.01	)***
Net realized and unrealized gain (loss) on investments		0.05
Total income from investment operations		0.04
Net asset value, end of period	$	10.04
Total Return (a)		0.50	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	285,149
Net expenses to average daily net assets		0.83	% *
Net investment income (loss) to average daily net assets		(0.11	)% *
Portfolio turnover rate		30	% **

* Annualized.

** Percentage represents results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

126

MML Small Cap Value Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.08	***
Net realized and unrealized gain (loss) on investments		0.44
Total income from investment operations		0.52
Less distributions to shareholders:
From net investment income		(0.07	)
Net asset value, end of period	$	10.45
Total Return (a)		5.20	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	207,239
Net expenses to average daily net assets		0.83	% *
Net investment income (loss) to average daily net assets		1.29	% *
Portfolio turnover rate		173	% **

* Annualized.

** Percentages represent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

127

MML Small Cap Index Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

		Period ended 12/31/06+
Net asset value, beginning of period		$	10.00
Income (loss) from investment operations:
Net investment income (loss)			0.04	***
Net realized and unrealized gain (loss) on investments			0.10
Total income from investment operations			0.14
Less distributions to shareholders:
From net investment income			(0.04	)
Net asset value, end of period		$	10.10
Total Return (a)			1.41	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	��	$	68,783
Ratio of expenses to average daily net assets:
Before expense waiver			0.52	% *
After expense waiver			0.45	% *#
Net investment income (loss) to average daily net assets			0.60	% *
Portfolio turnover rate			73	% **

* Annualized.

** Percentage represents results for the period and are not auunalized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

128

MML Global Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Class I
	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.10	***
Net realized and unrealized gain (loss) on investments		0.53
Total income from investment operations		0.63
Less distributions to shareholders:
From net investment income		(0.11	)
Net asset value, end of period	$	10.52
Total Return (a)		6.25	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	9,698
Ratio of expenses to average daily net assets:
Before expense waiver		1.15	% *
After expense waiver		0.71	% *#
Net investment income (loss) to average daily net assets		1.47	% *
Portfolio turnover rate		41	% **
	Class II
	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.10	***
Net realized and unrealized gain (loss) on investments		0.53
Total income from investment operations		0.63
Less distributions to shareholders:
From net investment income		(0.11	)
Net asset value, end of period	$	10.52
Total Return (a)		6.30	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	51,804
Ratio of expenses to average daily net assets:
Before expense waiver		1.04	% *
After expense waiver		0.61	% *#
Net investment income (loss) to average daily net assets		1.60	% *
Portfolio turnover rate		41	% **

* Annualized.

** Percentages represent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

129

MML Foreign Fund – Financial Statements (Continued)

Financial Highlights (For a share outstanding throughout each period)

	Period ended 12/31/06+
Net asset value, beginning of period	$	10.00
Income (loss) from investment operations:
Net investment income (loss)		0.13	***
Net realized and unrealized gain (loss) on investments		1.00
Total income from investment operations		1.13
Less distributions to shareholders:
From net investment income		(0.12	)
From net realized gains		(0.01	)
Total distributions		(0.13	)
Net asset value, end of period	$	11.00
Total Return (a)		11.26	% **
Ratios / Supplemental Data:
Net assets, end of period (000's)	$	253,512
Ratio of expenses to average daily net assets:
Before expense waiver		1.03	% *
After expense waiver		1.02	% *#
Net investment income (loss) to average daily net assets		1.90	% *
Portfolio turnover rate		9	% **

* Annualized.

** Percentages represent results for the period and are not annualized.

*** Per share amount calculated on the average shares method.

# Computed after giving effect to an agreement by MassMutual to waive certain fees and expenses of the Fund.

+ The Fund commenced operations on May 01, 2006.

The accompanying notes are an integral part of the financial statements.

130

Notes to Financial Statements

1. The Fund
MML Series Investment Fund ("MML Trust") is registered under the Investment Company Act of 1940, as amended (the "1940 Act"), as a no-load, open-end, management investment company. MML Trust is organized under the laws of the Commonwealth of Massachusetts as a Massachusetts business trust pursuant to an Agreement and Declaration of Trust dated May 14, 1993, as amended. The following are thirteen series of MML Trust (each individually referred to as a "Fund" or collectively as the "Funds"): MML Asset Allocation Fund ("Asset Allocation Fund"), MML Equity Income Fund ("Equity Income Fund"), MML Income & Growth Fund ("Income & Growth Fund"), MML Growth & Income Fund ("Growth & Income Fund"), MML Blue Chip Growth Fund ("Blue Chip Growth Fund"), MML Large Cap Growth Fund ("Large Cap Growth Fund"), MML Concentrated Growth Fund ("Concentrated Growth Fund"), MML Mid Cap Value Fund ("Mid Cap Value Fund"), MML Mid Cap Growth Fund ("Mid Cap Growth Fund"), MML Small Cap Value Fund ("Small Cap Value Fund"), MML Small Cap Index Fund ("Small Cap Index Fund"), MML Global Fund ("Global Fund") and MML Foreign Fund ("Foreign Fund").

Each Fund commenced operations on May 1, 2006.

The Concentrated Growth Fund and Global Fund offer two classes of shares: Class I and Class II. Each share class invests in the same portfolio of assets. The principal difference among the classes is the level of service and administration fees borne by the classes. Because each class will have different fees and expenses, performance and share prices among the classes will vary. The classes of shares are offered to different types of investors, as outlined in each Fund's Prospectus.

131

Notes to Financial Statements (Continued)

event like a bankruptcy filing, or a substantial fluctuation in domestic or foreign markets, that has occurred after the close of the exchange or market on which the security is principally traded (for example, a foreign exchange or market). In such a case, a Fund's value for a security is likely to be different from the last quoted market price or pricing service information. In addition, for each of MML Trust's foreign funds, a fair value pricing service is used to assist in the pricing of foreign securities. Due to the subjective and variable nature of fair value pricing, it is possible that the value determined for a particular asset may be materially different from the value realized upon such asset's sale.

Securities Lending
Each Fund may lend its securities to qualified brokers; however, securities lending cannot exceed 33% of the total assets of the Funds taken at current value. The loans are collateralized at all times with cash or securities with a market value at least equal to 100% of the market value of the securities on loan. The market value of the loaned securities is determined at the close of business of the Fund and any additional collateral is delivered to the Fund the next business day. As with other extensions of credit, the Funds may bear the risk of delay in recovery or even loss of rights in the collateral should the borrower of the securities fail financially. The Funds receive compensation for lending their securities. At December 31, 2006, the Funds l oaned securities having the following market values, collateralized by cash, which was invested in short-term instruments in the following amounts:

	Securitites on Loan		Collateral
Asset Allocation Fund	$	15,074,631	$	15,574,788
Equity Income Fund		22,961,432		23,836,678
Income & Growth Fund		16,958,899		17,566,662
Growth & Income Fund		20,461,521		21,114,475
Blue Chip Growth Fund		4,458,778		4,619,007
Large Cap Growth Fund		3,610,640		3,713,715
Concentrated Growth Fund		11,071,868		11,467,764
Mid Cap Value Fund		29,239,167		30,581,344
Mid Cap Growth Fund		64,624,515		66,904,205
Small Cap Value Fund		31,902,174		33,135,590
Small Cap Index Fund		12,611,938		13,074,524
Global Fund		5,574,174		5,800,209
Foreign Fund		16,623,575		17,423,977

For each Fund the amount of securities on loan indicated in the table above may not correspond with the securities on loan identified on the Portfolio of Investments because securities with pending sales are in process of recall from the brokers. At December 31, 2006, the Funds had no securities on loan with pending sales.

132

Notes to Financial Statements (Continued)

MML Trust receives, as fees, a share of the income earned on investment of the cash collateral received for the loan of securities. For the period ended December 31, 2006, MML Trust earned securities lending agent fees as follows:

	Securities Lending Gross Income		Securities Lending Fees and Expenses		Securities Lending Net Income
Asset Allocation Fund	$	692,725	$	675,009	$	17,716
Equity Income Fund		659,090		642,859		16,231
Income & Growth Fund		476,916		460,736		16,180
Growth & Income Fund		924,216		902,842		21,374
Blue Chip Growth Fund		178,873		173,282		5,591
Large Cap Growth Fund		222,333		207,534		14,799
Concentrated Growth Fund		322,957		317,887		5,070
Mid Cap Value Fund		853,089		826,684		26,405
Mid Cap Growth Fund		1,978,090		1,890,726		87,364
Small Cap Value Fund		653,046		583,818		69,228
Small Cap Index Fund		312,964		290,863		22,101
Global Fund		129,569		124,519		5,050
Foreign Fund		389,624		371,126		18,498

Repurchase Agreements Each Fund may enter into repurchase agreements with certain banks and broker/dealers whereby a Fund acquires a security for cash and obtains a simultaneous commitment from the seller to repurchase the security at an agreed upon price and date. The Funds, through their custodian, take possession of the securities collateralizing the repurchase agreement. The collateral is marked to market daily to ensure that the market value of the underlying assets remains sufficient to protect the Funds in the event of default by the seller. Collateral for certain tri-party repurchase agreements is held at the counterparty's custodian in a segregated account for the benefit of the Funds and the counterparty. In connection with transactions in repurchase agreements, if the seller defaults and the value of the collateral declines or if the seller e nters insolvency proceedings, realization of collateral by the Funds may be delayed or limited.

Accounting for Investments Investment transactions are accounted for on the trade date. Realized gains and losses on sales of investments and unrealized appreciation and depreciation of investments are computed on the specific identification cost method. Interest income, adjusted for amortization of discounts and premiums on debt securities, is earned from the settlement date and is recorded on the accrual basis. Dividend income is recorded on the ex-dividend date.

Dividends and Distributions to Shareholders Dividends from net investment income and distributions of any net realized capital gains of each Fund are declared and paid annually and at other times as may be required to satisfy tax or regulatory requirements. Distributions to shareholders are recorded on the ex-dividend date. Income and capital gain distributions are determined in accordance with income tax regulations, which may differ from generally accepted accounting principles. These differences are primarily due to investments in passive foreign investment companies and the deferral of wash sale losses. As a result, net investment income and net realized gain on investment transactions for a reporting period may differ significantly from distributions during such period.

133

Notes to Financial Statements (Continued)

Accordingly, the Funds may periodically make reclassifications among certain of their capital accounts without impacting the net asset value of the Funds.

During the year ended December 31, 2006, the following amounts were reclassified due to differences between book and tax accounting.

	Paid-in Capital			Accumulated Net Realized Gain (Loss) on Investments			Undistributed Net Investment Income
Asset Allocation Fund	$	-		$	(38,146	)	$	38,146
Equity Income Fund		(1	)		108,204			(108,203	)
Income & Growth Fund		(89,214	)		25,217			63,997
Growth & Income Fund		-			(7,237	)		7,237
Blue Chip Growth Fund		(2,984	)		2,629			355
Concentrated Growth fund		(6,998	)		-			6,998
Mid Cap Value Fund		-			19,773			(19,773	)
Mid Cap Growth		(203,489	)		1,506			201,983
Small Cap Value Fund		(22,007	)		76,939			(54,932	)
Small Cap Index Fund		-			(20,970	)		20,970
Global		(5,682	)		5,989			(307	)
Foreign		(82,071	)		132,855			(50,784	)

Foreign Currency Translation The books and records of the Funds are maintained in U.S. dollars. The market values of foreign currencies, foreign securities and other assets and liabilities denominated in foreign currencies are translated into U.S. dollars at the mean of the buying and selling rates of such currencies against the U.S. dollar at the end of each business day. Purchases and sales of foreign securities and income and expense items are translated at the rates of exchange prevailing on the respective dates of such transactions. The Funds do not isolate that portion of the results of operations arising from changes in the exchange rates from that portion arising from changes in the market prices of securities. Net realized foreign currency gains and losses resulting from changes in exchange rates include foreign currency gains and losses betwee n trade date and settlement date on investment securities transactions, foreign currency transactions and the difference between the amounts of dividends recorded on the books of the Funds and the amount actually received.

Forward Foreign Currency
Contracts Each Fund may enter into forward foreign currency contracts in order to hedge the effect of currency movements of foreign denominated securities or obligations. A forward foreign currency contract is an agreement between two parties to buy and sell a currency at a set price on a future date. The market value of a forward foreign currency contract fluctuates with changes in foreign currency exchange and interest rates. Forward foreign currency contracts are marked to market daily and the change in their value is recorded by the Funds as an unrealized gain or loss. When a forward foreign currency contract is extinguished, through delivery or offset by entering into another forward foreign currency contract, the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value of the contract at the time it was extinguished or offset.

134

Notes to Financial Statements (Continued)

A summary of open forward foreign currency contracts for the Asset Allocation Fund at December 31, 2006 is as follows:

Settlement Date	Contracts to Deliver/Receive	Units of Currency		In Exchange for U.S. Dollars		Contracts at Value		Net Unrealized Appreciation (Depreciation)
Asset Allocation Fund
SELLS
2/20/07	Argentinian Peso		550,000	$	177,445	$	179,324	$	(1,879	)
								$	(1,879	)

Delayed Delivery Transactions, When Issued Securities, and Forward Commitments Each Fund may purchase or sell securities on a "when issued" or delayed delivery or on a forward commitment basis. The Funds use forward commitments to manage interest rate exposure or as a temporary substitute for purchasing or selling particular debt securities. Payment and delivery may take place after the customary settlement period for that security. The price of the underlying securities and the date when the securities will be delivered and paid for are fixed at the time the transaction is negotiated. These securities are valued on the basis of valuations furnished by a pricing service, authorized by the Trustees, which determines valuations taking into account appropriate factors such as institutional-size trading in similar groups of securities, yield, quality, coupo n rate, maturity, type of issue, trading characteristics and other market data. Securities for which no market quotation is available, are valued at fair value in accordance with procedures approved by and determined in good faith by the Trustees, although the actual calculation may be done by others. The Funds record on a daily basis the unrealized appreciation (depreciation) based upon changes in the value of these securities. When a forward commitment contract is closed, the Funds record a realized gain or loss equal to the difference between the value of the contract at the time it was opened and the value of the contract at the time it was closed. Losses may arise due to changes in the value of the underlying securities or if the counterparty does not perform under the contract, or if the issuer does not issue the securities due to political, economic, or other factors. Funds monitor exposure to ensure counterparties are creditworthy and concentration of exposure is minimized.

At December 31, 2006, the Funds had no open obligations under these forward commitments.

A summary of open futures contracts for the Small Cap Value Fund and Small Cap Index Fund at December 31, 2006, is as follows:

Number of
Contracts

Type

Expiration Date

Notional
Contract
Value

Net Unrealized
Appreciation
(Depreciation)

Small Cap Value

BUYS
24

Russell Mini

3/16/2007

1,907,760

(8,320

)

Small Cap Index

BUYS
11

Russell Mini

3/16/2007

874,390

(3,894

)

135

Notes to Financial Statements (Continued)

Allocation of Operating Activity
In maintaining the records for the Concentrated Growth Fund and Global Fund, the income and expense accounts are allocated to each class of shares. Investment income, unrealized and realized gains or losses are prorated among the classes of shares based on the relative net assets of each. Expenses are allocated to each class of shares depending on the nature of the expenditures. Administration fees, which are directly attributable to a class of shares, are charged to that class' operations. Expenses of the Fund not directly attributable to the operations of any class of shares are prorated among the classes to which the expense relates based on the relative net assets of each.

3. Management Fees and Other Transactions

Asset Allocation Fund	0.55	%	Mid Cap Value Fund	0.84	%

Equity Income Fund	0.75	%	Mid Cap Growth Fund	0.77	%

Income & Growth Fund	0.65	%	Small Cap Value Fund	0.75	%

Growth & Income Fund	0.50	%	Small Cap Index Fund	0.35	%

Blue Chip Growth Fund	0.75	%	Global Fund Class I	0.60	%

Large Cap Growth Fund	0.65	%	Global Fund Class II	0.60	%

Concentrated Growth Fund Class I	0.60	%	Foreign Fund	0.89	%

Concentrated Growth Fund Class II	0.60	%

MassMutual has entered into investment sub-advisory agreements with the following unaffiliated investment sub-advisers: Capital Guardian Trust Company for the Asset Allocation Fund and Growth & Income Fund, T. Rowe Price Associates, Inc. for the Equity Income Fund, Blue Chip Growth Fund and the Mid Cap Growth Fund, American Century Investment Management, Inc. for the Income & Growth Fund and Mid Cap Value Fund, AllianceBernstein L.P. for the Large Cap Growth Fund, Legg Mason Capital Management, Inc. for the Concentrated Growth Fund, Goldman Sachs Asset Management, L.P. for the Small Cap Value Fund, Northern Trust Investments, N.A. for the Small Cap Index Fund, Neuberger Berman Management, Inc. for the Global Fund, and Templeton Investment Counsel, LLC for the Foreign Fund. MassMutual pays a sub-advisory fee to each of these sub-advisers based upon the aggregate net assets under management which include (1) the average daily net asset s of the specified Fund which it manages, and (2) the average daily net assets of all other funds or accounts of MassMutual or its affiliates for which the sub-adviser provides sub-advisory services and which have substantially the same investment objectives, policies and investment strategies.

The Fund sub-adviser fees are paid out of the management fees previously disclosed above.

Administration & Shareholder Service Fees For the Concentrated Growth Fund and Global Fund, under a separate administrative and shareholder services agreement between the Funds and MassMutual, MassMutual provides certain administrative and shareholder services and bears some of the class specific administrative expenses. In return for these services, MassMutual receives an administrative services fee monthly based upon the average daily net assets of the applicable class of shares of the Funds at the following annual rates: 0.24% of the average daily net assets of Class I shares and 0.14% of Class II shares of the Concentrated Growth Fund, 0.28% of the average daily net assets of Class I shares and .18% of Class II shares of the Global fund.

136

Notes to Financial Statements (Continued)

Expense Waivers
MassMutual agreed to cap the fees and expenses of the funds through April 30, 2008, unless otherwise noted, as follows:

Asset Allocation Fund	0.57	%	Mid Cap Value Fund	0.93	%

Equity Income Fund	0.85	%	Mid Cap Growth Fund	0.85	%

Income & Growth Fund	0.70	%	Small Cap Value Fund	0.88	%

Growth & Income Fund	0.52	%	Small Cap Index Fund	0.45	%

Blue Chip Growth Fund	0.85	%	Global Fund

Large Cap Growth Fund	0.73	%	Class I	0.71	%

Concentrated Growth Fund			Class II	0.61	%

Class I	0.76	%	Foreign Fund	1.02	%

Class II	0.66	%

Rebated Brokerage Commissions The Asset Allocation Fund, Growth & Income Fund, Blue Chip Growth Fund, Large Cap Growth Fund, Concentrated Growth Fund and Global Fund have entered into agreements with certain brokers whereby the brokers will rebate, in cash, a portion of brokerage commissions. For the period ended December 31, 2006, brokerage commissions under these agreements are as follows:

	Commissions
Asset Allocation	$	2,856
Growth & Income		13,278
Blue Chip Growth		409
Large Cap Growth		7,976
Concentrated Growth		12,668
Global		4,827

Other Certain officers and trustees of the Funds are also officers of MassMutual. The compensation of each trustee who is not an officer of MassMutual is borne by the Funds.

For the period ended December 31, 2006, no significant amounts have been deferred.

4. Purchases and Sales of Investments
Cost of purchases and proceeds from sales of investment securities (excluding short-term investments) for the period ended December 31, 2006, were as follows:

		Long-Term U.S. Government Securities		Other Long-Term Securities
Purchases	Asset Allocation Fund	$	84,527,787	$	263,045,574
	Equity Income Fund		-		73,478,429
	Income & Growth Fund		-		67,262,771
	Growth & Income Fund		-		350,679,775
	Blue Chip Growth Fund		-		14,059,547
	Large Cap Growth Fund		-		124,145,638
	Concentrated Growth Fund		-		115,622,057
	Mid Cap Value Fund		-		557,789,892
	Mid Cap Growth Fund		-		85,283,581
	Small Cap Value Fund		-		491,187,809
	Small Cap Index Fund		-		59,506,911
	Global Fund		-		81,340,315
	Foreign Fund		-		84,755,328

137

Notes to Financial Statements (Continued)

		Long-Term U.S. Government Securities		Other Long-Term Securities
Sales	Asset Allocation Fund	$	52,223,044	$	43,135,753
	Equity Income Fund		-		29,124,141
	Income & Growth Fund		-		87,088,874
	Growth & Income Fund		-		62,912,629
	Blue Chip Growth Fund		-		12,394,223
	Large Cap Growth Fund		-		46,585,935
	Concentrated Growth Fund		-		34,678,464
	Mid Cap Value Fund		-		538,703,737
	Mid Cap Growth Fund		-		115,843,381
	Small Cap Value Fund		-		296,521,527
	Small Cap Index Fund		-		49,826,480
	Global Fund		-		23,575,403
	Foreign Fund		-		18,712,558

5. Capital Share Transactions The Funds are authorized to issue an unlimited number of shares, with no par value in each class of shares. Changes in shares outstanding for each Fund are as follows:

				Period ended December 31, 2006*
	Shares			Amount
Asset Allocation Fund
Sold		27,502,423		$	275,149,248
Issued as reinvestment of dividends		430,008			4,441,990
Redeemed		(2,075,883	)		(20,855,215	)
Net increase (decrease)		25,856,548		$	258,736,023
Equity Income Fund
Sold		27,573,685		$	277,187,365
Issued as reinvestment of dividends		313,366			3,453,301
Redeemed		(1,243,183	)		(12,665,806	)
Net increase (decrease)		26,643,868		$	267,974,860
Income & Growth Fund
Sold		18,731,766		$	187,451,244
Issued as reinvestment of dividends		199,677			2,214,426
Redeemed		(2,533,456	)		(25,811,041	)
Net increase (decrease)		16,397,987		$	163,854,629
Growth & Income Fund
Sold		31,559,498		$	315,479,460
Issued as reinvestment of dividends		211,553			2,200,151
Redeemed		(2,549,295	)		(25,226,572	)
Net increase (decrease)		29,221,756		$	292,453,039
Blue Chip Growth Fund
Sold		5,625,992		$	56,210,528
Issued as reinvestment of dividends		11,906			126,319
Redeemed		(462,328	)		(4,576,844	)
Net increase (decrease)		5,175,570		$	51,760,003
Large Cap Growth Fund
Sold		8,965,431		$	89,463,307
Issued as reinvestment of dividends		8,009			80,325
Redeemed		(1,187,393	)		(11,216,015	)
Net increase (decrease)		7,786,047		$	78,327,617
Concentrated Growth Fund Class I
Sold		2,093,938		$	20,844,070
Issued as reinvestment of dividends		1,594			16,351
Redeemed		(329,650	)		(3,065,147	)
Net increase (decrease)		1,765,882		$	17,795,274

138

Notes to Financial Statements (Continued)

				Period ended December 31, 2006*
	Shares			Amount
Concentrated Growth Fund Class II
Sold		7,687,823		$	76,779,133
Issued as reinvestment of dividends		9,595			98,442
Redeemed		(1,361,345	)		(12,841,516	)
Net increase (decrease)		6,336,073		$	64,036,059
Mid Cap Value Fund
Sold		34,834,630		$	349,217,166
Issued as reinvestment of dividends		935,015			10,163,610
Redeemed		(2,555,702	)		(26,051,100	)
Net increase (decrease)		33,213,943		$	333,329,676
Mid Cap Growth Fund
Sold		32,808,454		$	327,799,856
Issued as reinvestment of dividends		-			-
Redeemed		(4,417,781	)		(42,403,798	)
Net increase (decrease)		28,390,673		$	285,396,058
Small Cap Value Fund
Sold		20,474,765		$	203,522,069
Issued as reinvestment of dividends		132,087			1,393,516
Redeemed		(778,975	)		(7,596,764	)
Net increase (decrease)		19,827,877		$	197,318,821
Small Cap Index Fund
Sold		7,829,708		$	78,069,483
Issued as reinvestment of dividends		27,227			277,452
Redeemed		(1,047,663	)		(10,047,438	)
Net increase (decrease)		6,809,272		$	68,299,497
Global Fund Class I
Sold		971,340		$	9,675,215
Issued as reinvestment of dividends		9,130			96,142
Redeemed		(58,237	)		(558,456	)
Net increase (decrease)		922,233		$	9,212,901
Global Fund Class II
Sold		5,770,054		$	57,737,234
Issued as reinvestment of dividends		51,156			539,189
Redeemed		(895,905	)		(8,644,815	)
Net increase (decrease)		4,925,305		$	49,631,608
Foreign Fund
Sold		24,069,966		$	241,284,833
Issued as reinvestment of dividends		261,637			2,880,622
Redeemed		(1,276,745	)		(12,715,773	)
Net increase (decrease)		23,054,858		$	231,449,682

* Funds commenced operations May 1, 2006.

	Federal Income Tax Cost		Tax Basis Unrealized Appreciation		Tax Basis Unrealized Depreciation			Net Unrealized Appreciation (Depreciation)
Asset Allocation Fund	$	273,814,171	$	14,203,171	$	(7,231,269	)	$	6,971,902
Equity Income Fund		292,060,970		25,594,721		(2,338,513	)		23,256,208
Income & Growth Fund		180,289,567		20,280,213		(2,333,331	)		17,946,882
Growth & Income Fund		314,091,815		21,605,594		(11,928,779	)		9,676,815
Blue Chip Growth Fund		55,470,925		4,950,636		(1,102,406	)		3,848,230
Large Cap Growth Fund		79,215,135		5,960,642		(3,381,696	)		2,578,946

139

Notes to Financial Statements (Continued)

	Federal Income Tax Cost		Tax Basis Unrealized Appreciation		Tax Basis Unrealized Depreciation			Net Unrealized Appreciation (Depreciation)
Concentrated Growth fund	$	93,080,083	$	5,438,947	$	(4,253,823	)	$	1,185,124
Mid Cap Value Fund		373,265,775		16,470,632		(1,604,865	)		14,865,767
Mid Cap Growth		350,313,815		18,483,912		(16,550,436	)		1,933,476
Small Cap Value Fund		220,937,222		21,920,810		(3,197,850	)		18,722,960
Small Cap Index Fund		81,403,619		5,369,752		(4,892,105	)		477,647
Global Fund		63,773,231		5,674,258		(2,367,853	)		3,306,405
Foreign Fund		249,452,790		26,315,550		(4,025,839	)		22,289,711

At December 31, 2006, the following Funds had available, for Federal income tax purposes, unused capital losses:

	Expiring 2014
Income & Growth Fund	$	903,986
Blue Chip Growth Fund		857,922
Large Cap Growth Fund		2,588,078
Concentrated Growth Fund		273,504
Mid Cap Growth Fund		1,964,674
Small Cap Value Fund		8,545,046
Global Fund		637,457

Net capital loss carryforwards may be applied against any net realized taxable gains in each succeeding year, or until their repsective expiration dates, whichever occurs first.

Certain differences exist from the amounts reflected in the Statement of Changes in Net Assets primarily due to the character of short-term capital gains treated as ordinary income for tax purposes.

The tax character of distributions paid during the year ended December 31, 2006 was as follows:

	Ordinary Income		Long Term Capital Gain		Short Term Capital Gain		Return of Capital
Asset Allocation Fund	$	4,441,989	$	-	$	-	$	-
Equity Income Fund		3,452,327		974		-		-
Income & Growth Fund		2,125,212		-		-		89,214
Growth & Income Fund		2,200,151		-		-		-
Blue Chip Growth Fund		123,335		-		-		2,984
Large Cap Growth Fund		80,325		-		-		-
Concentrated Growth Fund		107,796		-		-		6,998
Mid Cap Value Fund		10,143,421		20,189		-		-
Small Cap Value Fund		1,371,509		-		-		22,007
Small Cap Index Fund		249,541		27,911		-		-
Global Fund		635,331		-		-		-
Foreign Fund		2,798,551		-		-		82,071

140

Notes to Financial Statements (Continued)

At December 31, 2006, the components of distributable earnings on a tax basis were as follows:

	Undistributed Ordinary Income		Long Term Capital Gain (Capital Loss Carryover)			Other Temporary Differences			Unrealized Appreciation (Depreciation)*
Asset Allocation Fund	$	518,269	$	738		$	(13,948	)	$	6,971,325
Equity Income Fund		1,130,778		1,738			(6,722	)		23,256,381
Income & Growth Fund		-		(903,986	)		(4,305	)		17,946,882
Growth & Income Fund		516,676		1,299			(7,281	)		9,676,815
Blue Chip Growth Fund		-		(857,922	)		(1,276	)		3,848,217
Large Cap Growth Fund		1,306		(2,588,078	)		(427,911	)		2,578,946
Concentrated Growth Fund		-		(273,504	)		(2,090	)		1,185,124
Mid Cap Value Fund		10,868,898		15,860			(20,261	)		14,711,835
Mid Cap Growth Fund		-		(1,964,674	)		(12,799	)		1,933,420
Small Cap Value Fund		-		(8,545,046	)		(227,478	)		18,714,640
Small Cap Index Fund		-		1,730			7,822			473,753
Global Fund		-		(637,457	)		(6,590	)		3,306,971
Foreign Fund		-		-			(144,516	)		22,289,024

* Includes unrealized appreciation (depreciation) on investments, derivatives and foreign currency denominated assets and liabilities if any.

Pursuant to Section 852 of the Internal Revenue Code, the following Funds have designated captial gain dividends for the year ended December 31, 2006.

	Long-Term Capital Dividend
Equity Income Fund	$	974
Mid Cap Value Fund		20,189
Small Cap Index Fund		27,911

The following Funds elected to defer to January 1, 2007 post-October losses:

	Amount
Large Cap Growth Fund	$	425,987
Small Cap Value Fund		231,247

The following Funds elected to defer to January 1, 2007 post-October currency losses:

	Amount
Asset Allocation Fund	$	7,582
Equity Income Fund		195
Mid Cap Value Fund		173,114
Mid Cap Growth Fund		5,612
Global Fund		5,075
Foreign Fund		140,926

7. New Accounting
Pronouncements On July 13, 2006, the Financial Accounting Standards Board (FASB) released FASB Interpretation No. 48 "Accounting for Uncertainty in Income Taxes" (FIN 48). FIN 48 provides guidance for how uncertain tax positions should be recognized, measured, presented and disclosed in the financial statements. FIN 48 requires the evaluation of tax positions taken or expected to be taken in the course of preparing the fund's tax returns to determine whether the tax positions are "more-likely-than not" of being sustained by the applicable tax authority. Adoption of FIN 48 is required during the first financial reporting period for fiscal years beginning after December 15, 2006 and is to be applied to all open tax years as of the effective

141

Notes to Financial Statements (Continued)

date. At this time, management is evaluating the implications of FIN 48 and its impact on the financial statements has not yet been determined.

8. Proxy Voting
(Unaudited) A description of the policies and procedures that each Fund's investment adviser and sub-advisers use to vote proxies relating to the Fund's portfolio securities is available, without charge, upon request, by calling 1-888-309-3539, and on the Securities and Exchange Commission's website at http://www.sec.gov.

9. Quarterly Reporting
(Unaudited) The Funds file their complete schedule of portfolio holdings with the SEC for the first and third quarters of each fiscal year on Form N-Q. The Funds' Forms N-Q are available on the SEC website at http://www.sec.gov. The Funds' Forms N-Q may be reviewed and copied at the SEC's Public Reference Room in Washington D.C. Information on the operation of the SEC's Public Reference Room may be obtained by calling 1-800-SEC-0330.

142

Report of Independent Registered Public Accounting Firm

To the Board of Trustees and Shareholders of MML Series Investment Fund:

We have audited the accompanying statements of assets and liabilities, including the portfolios of investments, of MML Asset Allocation Fund, MML Equity Income Fund, MML Income and Growth Fund, MML Growth and Income Fund, MML Blue Chip Growth Fund, MML Large Cap Growth Fund, MML Concentrated Growth Fund, MML Mid Cap Value Fund, MML Mid Cap Growth Fund, MML Small Cap Value Fund, MML Small Cap Index Fund, MML Global Fund, and MML Foreign Fund (collectively the "Funds"), thirteen of the funds comprising the MML Series Investment Fund (the "MML Trust"), as of December 31, 2006, and the related statements of operations, the statements of changes in net assets, and the financial highlights for the period from May 1, 2006 (commencement of operations) through December 31, 2006. These financial statements and financial highlights are the responsibility of the MML Trust's management. Our responsibility is to express an opinion on these financial state ments and financial highlights based on our audits.

In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of each of the Funds constituting the MML Trust as of December 31, 2006, and the results of their operations, the changes in their net assets and their financial highlights for the period from May 1, 2006 (commencement of operations) through December 31, 2006, in conformity with accounting principles generally accepted in the United States of America.

Deloitte & Touche LLP
Boston, Massachusetts
February 22, 2007

143

Trustees and Officers (Unaudited)

Disinterested
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

Richard W. Greene
Age: 71

Chairman and Trustee of MML Trust

Since
1999

Retired.

Trustee (since 1996), Advisory Board Member (1996-1999), MassMutual Select Funds (open-end investment company).

Richard H. Ayers
Age: 64

Trustee of MML Trust

Since
1999

Retired.

Director, Applera Corporation; Trustee (since 1996) MassMutual Select Funds (open-end investment company).

Allan W. Blair
Age: 58

Trustee of MML Trust

Since
2003

Director (since 2001), Future Works, Inc.; Trustee (since 2003), MassMutual Select Funds (open-end investment company).

Mary E. Boland
Age: 67

Trustee of MML Trust

Since
1973

Attorney at Law (since 2004); Attorney at Law (1965-2004), Egan, Flanagan and Cohen, P.C. (law firm), Springfield, MA.

Director (since 1999), BankNorth Massachusetts; Vice Chairman (since 1999), Massachusetts Educational Financing Authority; Trustee (since 1994), MassMutual Select Funds (open-end investment company).

144

Trustees and Officers (Unaudited) (Continued)

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

R. Alan Hunter, Jr.
Age: 60

Trustee of MML Trust

Since
2003

Retired.

Trustee (since 2003), MassMutual Select Funds (open-end investment company).

F. William Marshall, Jr.
Age: 64

Trustee of MML Trust

Since
1996

Consultant (since 1999).

Trustee (since 2000), Board II Oppenheimer Funds; Trustee (since 1996), MassMutual Select Funds (open-end investment company).

Interested
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Term
of Office**
and
Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Trustee

Other
Directorships
Held by Trustee

Robert E. Joyal
Age: 61

Vice Chairman and Trustee of MML Trust

Since
2003

Retired; President (2001-2003), Managing Director (2000-2001) and Executive Director (1999-2000), David L. Babson & Company Inc.

Frederick C. Castellani
Age: 60

Trustee and Vice President of MML Trust

Since
2006

Executive Vice President (since 2001), Senior Vice President (1996-2001), MassMutual.

145

Trustees and Officers (Unaudited) (Continued)

Principal Officers
who are Not
Trustees

Name, Address*,
and Age

Position(s)
Held with
MML Trust

Length
of Time
Served

Principal
Occupation(s) During
Past 5 Years

Number of
Portfolios in
Fund
Complex
Overseen by
Officer

John F. Carlson
Age: 51

President of MML Trust

Since
2006

Vice President (since 2003), Second Vice President (2002-2003), MassMutual; Vice President (1997-2002), CIGNA.

Nicholas H. Palmerino
Age: 41

Chief Financial Officer and Treasurer of MML Trust

Since
2006

Kristin L. Bushard
Age: 40

Vice President of MML Trust

Since
2005

Assistant Vice President (since 2005), Managing Director (2003-2005), MassMutual; Assistant Vice President (2000-2003), Allmerica Asset Management.

Michael A. Chong
Age: 49

Vice President and Chief Compliance Officer of MML Trust

Since
2004

Vice President, Compliance (since 2004), Vice President and Associate General Counsel (1999-2004), MassMutual.

John E. Deitelbaum
Age: 38

Vice President, Clerk and Chief Legal Officer of MML Trust

Since
2006

Vice President and Associate General Counsel (since 2006), Second Vice President and Associate General Counsel (2000-2006), MassMutual.

Eric H. Wietsma
Age: 40

Vice President of MML Trust

Since
2006

Vice President (since 2005), MassMutual; Vice President (1999-2005), Hartford Life Insurance Company.

Tina M. Wilson
Age: 36

Vice President of MML Trust

Since
2006

Assistant Vice President (since 2000), MassMutual.

* The address of each Trustee and Principal Officer is the same as that for MML Trust; 1295 State Street, Springfield, Massachusetts 01111.

146

Federal Tax Information (Unaudited)

For corporate shareholders, a portion of the ordinary dividends paid during the Fund's year ended December 31, 2005 qualified for the dividends received deduction, as follows:

Fund Name	Diviedends Received Deduction
Asset Allocation Fund		34.24	%
Equity Income Fund		100.00	%
Income & Growth Fund		100.00	%
Growth & Income Fund		100.00	%
Blue Chip Growth Fund		100.00	%
Large Cap Growth Fund		100.00	%
Concentrated Growth Fund		100.00	%
Small Cap Value Fund		100.00	%
Small Cap Index Fund		100.00	%
Global Fund		47.17	%
Foreign Fund		100.00	%

Fund Name	Qualified Dividend Income
Asset Allocation Fund		34.11	%
Equity Income Fund		95.20	%
Income & Growth Fund		100.00	%
Growth & Income Fund		100.00	%
Blue Chip Growth Fund		100.00	%
Large Cap Growth Fund		100.00	%
Concentrated Growth Fund		100.00	%
Small Cap Value Fund		68.94	%
Small Cap Index Fund		100.00	%
Global Fund		100.00	%
Foreign Fund		95.20	%

147

Other Information (Unaudited)

Fund Expenses December 31, 2006

Expense Examples				The following information is in regards to expenses for the six month period ended December 31, 2006: As a shareholder of the Funds, you incur ongoing costs, including management fees and other Fund expenses. These examples are intended to help you understand your ongoing costs (in dollars) of investing in the Funds and to compare these costs with the ongoing costs of investing in other mutual funds. These examples are based on an investment of $1,000 invested for the six month period ended December 31, 2006.

Actual Expenses				The first line of each table on the following pages provides information about actual account values and actual expenses. You may use the information in this line, together with the amount you invested, to estimate the expenses that you paid over the period. Simply divide your account value by $1,000 (for example, an $8,600 account value divided by $1,000 = 8.6), then multiply the result by the number in the first line under the heading entitled "Operating Expenses Incurred" to estimate the expenses you paid on your account during this period.

Hypothetical Example for Comparison Purposes				The second line of each table on the following pages provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only. Therefore, the second line of the table is useful in comparing ongoing costs only, and will not help you determine the relati ve total costs of owning different funds.

148

Other Information (Unaudited) (Continued)

Asset Allocation Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,074.30	$	2.98
2) Hypothetical		1,000.00		1,022.33		2.91

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.57%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Equity Income Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,132.40	$	4.35
2) Hypothetical		1,000.00		1,021.12		4.13

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.81%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Income & Growth Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,140.50	$	3.78
2) Hypothetical		1,000.00		1,021.68		3.57

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.70%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Growth & Income Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,082.50	$	2.73
2) Hypothetical		1,000.00		1,022.58		2.65

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.52%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

149

Other Information (Unaudited) (Continued)

Blue Chip Growth Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,109.20	$	4.52
2) Hypothetical		1,000.00		1,020.92		4.33

Large Cap Growth Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,083.40	$	3.83
2) Hypothetical		1,000.00		1,021.53		3.72

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.73%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Concentrated Growth Fund

Class I

Beginning	Ending Value		Operating Expense Value		Incurred*
1) Actual	$	1,000.00	$	1,104.80	$	4.03
2) Hypothetical		1,000.00		1,021.37		3.87

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.76%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Class II

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,105.50	$	3.50
2) Hypothetical		1,000.00		1,021.88		3.36

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.66%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Mid Cap Value Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,145.50	$	4.87
2) Hypothetical		1,000.00		1,020.67		4.58

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.90%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

150

Other Information (Unaudited) (Continued)

Mid Cap Growth Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,057.90	$	4.31
2) Hypothetical		1,000.00		1,021.02		4.23

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.83%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Small Cap Value Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,112.10	$	4.37
2) Hypothetical		1,000.00		1,021.07		4.18

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.82%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Small Cap Index Fund

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,067.40	$	2.34
2) Hypothetical		1,000.00		1,022.94		2.29

Global Fund

Class I

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,142.50	$	3.83
2) Hypothetical		1,000.00		1,021.63		3.62

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.71%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

Class II

	Beginning Value		Ending Value		Operating Expense Incurred*
1) Actual	$	1,000.00	$	1,143.00	$	3.29
2) Hypothetical		1,000.00		1,022.13		3.11

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 0.61%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

151

Other Information (Unaudited) (Continued)

Foreign Fund

		Beginning Value		Ending Value		Operating Expense Incurred*
1	) Actual	$	1,000.00	$	1,154.20	$	5.54
2	) Hypothetical		1,000.00		1,020.06		5.19

* Expenses are calculated using the annualized expense ratio for the six months ended December 31, 2006 of 1.02%, multiplied by the average account value over the period, multiplied by the number of days in the period, divided by the number of days in the year.

152

Massachusetts Mutual Life Insurance Company and affiliates, Springfield, MA 01111-0001

www.massmutual.com

MassMutual Financial Group is a marketing designation (or fleet name) for Massachusetts Mutual Life Insurance Company (MassMutual) and its affiliates.

L4540_a 1206

Item 2. Code of Ethics.

As of December 31, 2006, the Registrant adopted a Code of Ethics that applies to the Principal Executive Officer and Principal Financial Officer pursuant to the Sarbanes-Oxley Act of 2002. For the year ended December 31, 2006, there were no amendments to a provision of the Code of Ethics. A copy of its Code of Ethics is filed with this Form N-CSR under Item 12(a)(1).

Item 3. Audit Committee Financial Expert.

The Registrant’s Board of Trustees has determined that Richard H. Ayers and R. Alan Hunter, Jr., both members of the Audit Committee, are audit committee financial experts as defined by the Securities and Exchange Commission (the “SEC”). Mr. Ayers and Mr. Hunter are both “independent” as defined by the SEC for purposes of audit committee financial expert determinations.

Item 4. Principal Accountant Fees and Services.

Aggregate fees stated below include amounts paid to Deloitte & Touche on behalf of the MML Money Market Fund, the MML Inflation-Protected Bond Fund, the MML Managed Bond Fund, the MML Blend Fund, the MML Equity Fund, the MML Enhanced Index Core Equity Fund, the MML Small Cap Equity Fund and the MML Small Company Opportunities Fund prior to the close of business on April 29, 2005 when the reorganization of the Funds into the MML Series Investment Fund II was completed.

(a) AUDIT FEES: The aggregate fees billed to the Registrant for professional services rendered by its independent auditors, Deloitte & Touche LLP, for the audit of the Registrant’s annual financial statements for 2006 and 2005 were $138,800 and $263,800, respectively.

(b) AUDIT RELATED FEES: No such fees were billed to the Registrant by Deloitte & Touche LLP for 2006 and 2005.

(c) TAX FEES: The aggregate fees billed to the Registrant for professional services rendered by Deloitte & Touche LLP for the review of Form 1120-RIC, Form 8613, excise distribution projections, distribution calculation and reasonable out of pocket expenses for 2006 and 2005 were $8,100 and $54,700, respectively.

(d) ALL OTHER FEES: No such fees were billed to the Registrant by Deloitte & Touche LLP for 2006 and 2005.

(e) (1) AUDIT COMMITTEE PRE-APPOVAL POLICY: All services to be performed for the Registrant by Deloitte & Touche LLP must be pre-approved by the audit committee. All services performed during 2006 and 2005 were pre-approved by the committee.
(2) Not applicable.

(f) Not applicable.

(g) The aggregate non-audit fees billed by Deloitte and Touche LLP for services rendered to the Registrant, and the Registrant’s adviser, for the fiscal years 2006 and 2005 were $259,561 and $381,552, respectively.

(h) Not applicable.

Item 5. Audit Committee of Listed Registrants.

Not applicable to this filing.

Item 6. Schedule of Investments.

Not applicable to this filing.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable to this filing.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable to this filing.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable to this filing.

Item 10. Submission of Matters to a Vote of Security Holders.

Not applicable to this filing.

Item 11. Controls and Procedures.

(a) The Registrant’s Principal Executive Officer and Principal Financial Officer concluded that the Registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) were effective as of a date within 90 days prior to the filing date of this report (the “Evaluation Date”), based on their evaluation of the effectiveness of the Registrant’s disclosure controls and procedures as of the Evaluation Date.

(b) There were no changes in the Registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the Registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Registrant’s internal control over financial reporting.

Item 12. Exhibits.

(a)(1) Code of Ethics (Item 2) is attached.

(a)(2) Certifications of the Principal Executive Officer and Principal Financial Officer of the Registrant as required by Rule 30a-2(a) under the Investment Company Act of 1940 (17 CFR 270.30a-2(a)) are attached hereto as Exhibit 99CERT.

(a)(3) Not applicable to this filing.

(b) Certifications pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 as required by Rule 30a-2(b), under the Investment Company Act of 1940 (17 CFR 270.30a-2(b)), Rule 15d-14(b) under the Securities Exchange Act of 1934 (17 CFR 240.15d-14(b)) and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350) are attached hereto as Exhibit 99.906CERT.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)		MML Series Investment Fund


By (Signature and Title)			/s/ John F. Carlson
			John F. Carlson, President and Principal Executive Officer

Date	2/22/07

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)			/s/ John F. Carlson
			John F. Carlson, President and Principal Executive Officer


Date	2/22/07

By (Signature and Title)			/s/ Nicholas H. Palmerino
			Nicholas H. Palmerino, Treasurer and Principal Financial Officer


Date		2/22/07

MML Series Investment Fund N-CSRCertified annual shareholder report (management investment company)

Item 5. Audit Committee of Listed Registrants.

Not applicable to this filing.

Item 6. Schedule of Investments.

Not applicable to this filing.

Not applicable to this filing.

Item 8. Portfolio Managers of Closed-End Management Investment Companies.

Not applicable to this filing.

Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers.

Not applicable to this filing.

Not applicable to this filing.