SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   ----------
                                    FORM 10-Q
                                   ----------

(Mark One)

      [X]   QUARTERLY  REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES
            EXCHANGE ACT OF 1934

            For the Quarterly Period Ended: March 31, 2004

                                       OR

      [ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES
            EXCHANGE ACT OF 1934

            For the transition period from _____________ to ____________

            Commission File Number: 1-10551


                                OMNICOM GROUP INC.

- --------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

             New York                                    13-1514814
- --------------------------------------------------------------------------------
(State or other jurisdiction of             (IRS Employer Identification Number)
incorporation or organization)

 437 Madison Avenue, New York, New York                        10022
- --------------------------------------------------------------------------------
(Address of principal executive offices)                    (Zip Code)

                                (212) 415-3600
- --------------------------------------------------------------------------------
              (Registrant's telephone number, including area code)

                                 Not Applicable
- --------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                         if changed since last report)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports  and  (2)  has  been  subject  to  such  filing
requirements for the past 90 days.    YES  X        NO ___
                                          ---

Indicate  by check mark  whether  the  registrant  is an  accelerated  filer (as
defined  in  Rule  12  b-2  of  the   Exchange   Act).    YES  X       NO ___
                                                              ---

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest  practicable  date.  189,045,500 (as of April 30,
2004)



                       OMNICOM GROUP INC. AND SUBSIDIARIES
                                      INDEX




PART I.        FINANCIAL INFORMATION

                                                                        Page No.
                                                                        --------
     Item 1.   Financial Statements

               Consolidated Condensed Balance Sheets -
                    March 31, 2004 and December 31, 2003.....................  1

               Consolidated Condensed Statements of Income -
                    Three Months Ended March 31, 2004 and 2003...............  2

               Consolidated Condensed Statements of Cash Flows -
                    Three Months Ended March 31, 2004 and 2003...............  3

               Notes to Consolidated Condensed Financial Statements..........  4


     Item 2.   Management's Discussion and Analysis of Financial Condition
               And Results of Operations.....................................  8


     Item 3.   Quantitative and Qualitative Disclosures About Market Risk.... 17


     Item 4.   Controls and Procedures....................................... 18

PART II.       OTHER INFORMATION

     Item 2.   Changes in Securities, Use of Proceeds and Issuer Purchases
               of Equity Securities...........................................19

     Item 6.   Exhibits and Reports on Form 8-K.............................. 19

               Signatures.................................................... 20

               Certifications of Senior Executive Officers



                       OMNICOM GROUP INC. AND SUBSIDIARIES
                      CONSOLIDATED CONDENSED BALANCE SHEETS
                              (Dollars in Millions)




                                                                                  (Unaudited)
                                                                                   March 31,       December 31,
                                                                                     2004              2003
                                                                                  -----------      ------------
                                                                                             
                                     ASSETS
CURRENT ASSETS:
     Cash and cash equivalents.................................................  $     519.3       $   1,528.7
     Short-term investments at market, which approximates cost.................         25.0              20.2
     Accounts receivable, less allowance for doubtful accounts
        of $64.1 and $69.7.....................................................      4,722.9           4,530.0
     Billable production orders in process, at cost............................        546.6             440.4
     Prepaid expenses and other current assets.................................        806.2             766.6
                                                                                 -----------       -----------
                  Total Current Assets.........................................      6,620.0           7,285.9
                                                                                 -----------       -----------
FURNITURE, EQUIPMENT AND LEASEHOLD IMPROVEMENTS, at cost,
     less accumulated depreciation and amortization of $842.4 and $817.1.......        619.2             596.8
INVESTMENTS IN AFFILIATES......................................................        147.8             151.2
GOODWILL ......................................................................      5,933.1           5,886.2
INTANGIBLES, net of accumulated amortization of $135.6 and $127.8..............        115.9             121.4
DEFERRED TAX BENEFITS..........................................................        256.5             264.6
OTHER ASSETS...................................................................        345.8             313.9
                                                                                 -----------       -----------

                  TOTAL ASSETS.................................................  $  14,038.3       $  14,620.0
                                                                                 ===========       ===========

                      LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
     Accounts payable..........................................................  $   4,977.3       $   5,513.3
     Advance billings..........................................................        775.3             775.2
     Current portion of long-term debt.........................................          5.1              12.4
     Bank loans................................................................         61.8              42.4
     Accrued taxes.............................................................        131.6             221.7
     Other liabilities.........................................................      1,171.7           1,197.5
                                                                                 -----------       -----------
                  Total Current Liabilities....................................      7,122.8           7,762.5
                                                                                 -----------       -----------

LONG-TERM DEBT.................................................................        208.4             197.3
CONVERTIBLE NOTES .............................................................      2,339.3           2,339.3
DEFERRED COMPENSATION AND OTHER LIABILITIES....................................        332.6             342.9
LONG TERM DEFERRED TAX LIABILITY...............................................        234.8             204.1
MINORITY INTERESTS.............................................................        180.7             187.3

SHAREHOLDERS' EQUITY:
     Common stock .............................................................         29.8              29.8
     Additional paid-in capital................................................      1,809.2           1,815.7
     Retained earnings.........................................................      2,512.6           2,419.0
     Unamortized stock compensation............................................       (184.6)           (216.4)
     Accumulated other comprehensive income....................................        135.4             109.7
     Treasury stock............................................................       (682.7)           (571.2)
                                                                                 -----------       -----------
                  Total Shareholders' Equity...................................      3,619.7           3,586.6
                                                                                 -----------       -----------
                  TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY...................  $  14,038.3       $  14,620.0
                                                                                 ===========       ===========


           The accompanying notes to consolidated condensed financial
              statements are an integral part of these statements.


                                       1


                       OMNICOM GROUP INC. AND SUBSIDIARIES
                   CONSOLIDATED CONDENSED STATEMENTS OF INCOME
                              (Dollars in Millions)
                                   (Unaudited)



                                                    Three Months Ended March 31,
                                                    ----------------------------
                                                      2004              2003
                                                      ----              ----
REVENUE ........................................    $2,231.4          $1,937.2

OPERATING EXPENSES:
    Salary and service costs....................     1,593.6           1,362.0
    Office and general expenses.................       408.5             373.0
                                                    --------          --------
                                                     2,002.1           1,735.0
                                                    --------          --------
OPERATING PROFIT................................       229.3             202.2

NET INTEREST EXPENSE:
    Interest expense............................        13.7              11.2
    Interest income.............................        (3.3)             (2.9)
                                                     -------          --------
                                                        10.4               8.3
                                                     -------          --------
INCOME BEFORE INCOME TAXES......................       218.9             193.9

INCOME TAXES....................................        73.6              67.1
                                                     -------          --------
INCOME AFTER INCOME TAXES.......................       145.3             126.8

EQUITY IN AFFILIATES............................         2.5               2.5

MINORITY INTERESTS..............................       (12.2)            (13.8)
                                                    --------          --------
        NET INCOME..............................    $  135.6          $  115.5
                                                    ========          ========
NET INCOME PER COMMON SHARE:
        Basic...................................    $   0.72          $   0.62
        Diluted.................................    $   0.72          $   0.62

DIVIDENDS DECLARED PER COMMON SHARE.............    $  0.225          $  0.200

           The accompanying notes to consolidated condensed financial
              statements are an integral part of these statements.


                                       2


                       OMNICOM GROUP INC. AND SUBSIDIARIES
                 CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS
                              (Dollars in Millions)
                                   (Unaudited)



                                                                             Three Months Ended March 31,
                                                                             ----------------------------
                                                                              2004                2003
                                                                              ----                ----
                                                                                          
Cash flows from operating activities:
Net income  .............................................................  $    135.6           $   115.5
     Adjustments to reconcile net income to net cash provided
        by operating activities:
     Depreciation of tangible assets.....................................        34.7                29.9
     Amortization of intangible assets...................................        10.5                 7.6
     Minority interests..................................................        12.2                13.8
     Earnings of affiliates less than dividends received.................         1.7                 1.3
     Net gain on investment activity.....................................       (13.1)                --
     Tax benefit on employee stock plans.................................         5.1                 1.1
     Amortization of stock compensation..................................        31.7                34.7
     Provisions (reductions) for losses on accounts receivable...........         0.8                (0.9)
     Changes in assets and liabilities providing (requiring)
        cash net of acquisitions:
     Increase in accounts receivable.....................................      (192.1)              (18.9)
     Increase in billable production orders in process...................      (106.5)             (117.6)
     Increase in prepaid expenses and other current assets...............       (41.1)              (65.1)
     Net change in other assets and liabilities..........................       (78.0)              (18.4)
     (Decrease) increase in advanced billings............................        (2.0)               20.4
     Net decrease in accrued taxes.......................................       (42.3)              (53.5)
     Decrease in accounts payable........................................      (543.6)             (613.7)
                                                                           ----------           ---------
        Net cash used for operating activities...........................      (786.4)             (663.8)
                                                                           ----------           ---------
Cash flows from investing activities:
     Capital expenditures................................................       (45.4)              (29.0)
     Payments for purchases of equity interests in subsidiaries and
        affiliates, net of cash acquired.................................       (31.6)              (22.0)
     Purchases of short-term investments.................................        (6.9)               (1.7)
     Proceeds from sale of short-term investments........................         2.8                 5.0
                                                                            ---------           ---------
        Net cash used in investing activities............................       (81.1)              (47.7)
                                                                            ---------           ---------
Cash flows from financing activities:
     Increase in short-term borrowings...................................        20.2                43.4
     Proceeds from issuance of debt......................................         1.7               427.4
     Repayments of principal of long-term debt obligations...............       (10.5)              (29.7)
     Dividends paid......................................................       (37.6)              (37.2)
     Purchase of treasury shares.........................................      (141.1)                --
     Other, net..........................................................         6.4                 2.7
                                                                            ---------           ---------
        Net cash (used) provided by financing activities.................      (160.9)              406.6
                                                                            ---------           ---------

Effect of exchange rate changes on cash and cash equivalents.............        19.0                (7.5)
                                                                            ---------           ---------
        Net decrease in cash and cash equivalents........................    (1,009.4)             (312.4)
Cash and cash equivalents at beginning of period.........................     1,528.7               667.0
                                                                            ---------           ---------

Cash and cash equivalents at end of period...............................   $   519.3           $   354.6
                                                                            =========           =========

Supplemental disclosures:
     Income taxes paid...................................................   $    51.2           $   115.5
     Interest paid.......................................................   $    11.3           $    33.6


           The accompanying notes to consolidated condensed financial
              statements are an integral part of these statements.


                                       3

                       OMNICOM GROUP INC. AND SUBSIDIARIES
              NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS

1.    We have prepared the consolidated  condensed interim financial  statements
      included   herein  without  audit  pursuant  to  Securities  and  Exchange
      Commission rules.  Certain information and footnote  disclosures  normally
      included in financial  statements  prepared in accordance  with  generally
      accepted  accounting  principles  ("GAAP") have been  condensed or omitted
      pursuant to these rules.

2.    The accompanying financial statements reflect all adjustments,  consisting
      of normally  recurring  accruals,  which in the opinion of management  are
      necessary  for a fair  presentation,  in  all  material  respects,  of the
      information contained therein. Certain reclassifications have been made to
      the March 31, 2003 and December 31, 2003 reported  amounts to conform them
      to the March 31, 2004  presentation.  These  statements  should be read in
      conjunction with the consolidated  financial  statements and related notes
      included in our annual report on Form 10-K for the year ended December 31,
      2003.

3.    Results of operations for interim periods are not  necessarily  indicative
      of annual results.

4.    In   accordance   with  SFAS  No.   123,   "Accounting   for  Stock  Based
      Compensation",  as amended by SFAS No. 148,  "Accounting  for  Stock-Based
      Compensation - Transition and  Disclosure,  an amendment of FASB Statement
      No.  123",  we  elected,   effective  January  1,  2004,  to  account  for
      stock-based  employee  compensation  using  the fair  value  method.  As a
      result,  the fair value of stock-based  employee  compensation,  including
      unvested  employee stock options issued and outstanding,  were recorded as
      an expense in the current  period  utilizing the  retroactive  restatement
      method as set forth in SFAS 148. Accordingly,  our results for the quarter
      ended March 31,  2003 have been  restated as if we had used the fair value
      method to account for stock-based employee  compensation.  Results for the
      three  months  ended March 31, 2004 and 2003  included  $31.6  million and
      $34.7 million,  respectively, of pre-tax stock-based employee compensation
      costs.  Also, in connection  with the  restatement,  the December 31, 2003
      balance sheet  presented  reflects an increase in the deferred tax benefit
      of $120.5  million,  an increase in additional  paid-in  capital of $434.7
      million,  an increase in unamortized  stock  compensation of $92.6 million
      and a decrease in retained earnings of $221.6 million.

            The table below presents a reconciliation of net income and earnings
      per share, as reported to the restated results for the quarter ended March
      31, 2003.

                                                    (Dollars in Millions,
                                                  Except Per Share Amounts)
                                                -------------------------------
                                                                Earnings Per
                                                                Common Share
                                                             ------------------
                                                Net Income    Basic    Diluted
                                                ----------    ------    -------
        As Reported, March 31, 2003...........   $  128.6    $  0.69    $ 0.69

        Less:  fair value of stock
        option issued per
        common share, net of taxes............       13.1       0.07      0.07
                                                 --------    -------    ------
        Restated, March 31, 2003..............   $  115.5    $  0.62    $ 0.62
                                                 ========    =======    ======


                                       4


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Continued)

5.    Basic  earnings  per share is based upon the  weighted  average  number of
      common shares outstanding during the period. Diluted earnings per share is
      based on the above,  plus,  if dilutive,  common share  equivalents  which
      include  outstanding  options and restricted  shares.  No adjustments were
      made for any  series of our  zero-coupon  convertible  notes  because  the
      conversion  criteria have not been met. For purposes of computing  diluted
      earnings per share,  928,000 common share  equivalents  were assumed to be
      outstanding for the three months ended March 31, 2004.

            The  assumed  increase  in  net  income  related  to the  after  tax
      compensation  expense related to dividends on restricted shares was $274.8
      thousand and $240.0 thousand for the three months ended March 31, 2004 and
      2003, respectively.

            The number of shares used in our EPS computations were:

                                                         Three Months
                                                        Ended March 31,
                                                  ------------------------------
                                                    2004              2003
                                                    ----              ----
               Basic EPS Computation              187,852,000       186,556,000
               Diluted EPS Computation            188,780,000       186,556,000

6.    Total comprehensive income and its components were:

                                                          (Dollars in Millions)
                                                          ---------------------
                                                            Three Months Ended
                                                                  March 31,
                                                          ---------------------
                                                           2004          2003
                                                           ----          ----
              Net income for the period.................. $135.6        $115.5

              Foreign currency translation adjustment,
              net of income taxes of $13.9 and $9.4
              in 2004 and 2003, respectively.............   25.7          17.4
                                                          ------         -----
              Comprehensive income for the period........ $161.3        $132.9
                                                          ======        ======

7.    All of our  wholly  and  partially  owned  businesses  operate  within the
      advertising,  marketing and corporate  communications  services  industry.
      These  agencies are organized  into  strategic  platforms,  client centric
      networks,  geographic regions and operating groups. Our businesses provide
      communications services to similar type clients on a global,  pan-regional
      and national basis. The businesses have similar cost  structures,  and are
      subject to the same general  economic and competitive  risks.  Given these
      similarities, we have aggregated their results into one reporting segment.
      A summary of our revenue and long-lived  assets by geographic area for the
      three months ended March 31, 2004 and 2003 is presented below:


                                       5


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Continued)




                                                                   (Dollars in Millions)
                                          -----------------------------------------------------------------
                                          United       Euro         United       Other
                                          States    Denominated    Kingdom   International    Consolidated
                                          ------    -----------    -------   -------------    ------------
                                                                                 
        2004
           Revenue....................   $1,221.2     $455.8        $251.1       $303.3         $2,231.4
           Long-Lived Assets..........      335.2      101.0          93.0         90.0            619.2

        2003
           Revenue....................   $1,099.6     $388.1        $210.9       $238.6         $1,937.2
           Long-Lived Assets..........      317.1       80.9          82.6         78.8            559.4


8.    Bank loans at March 31, 2004 of $61.8 million are  primarily  comprised of
      bank  overdrafts of our  international  subsidiaries  which are treated as
      unsecured  loans  pursuant to our bank  agreements.  In January  2004,  in
      connection  with the purchase of an office  building we assumed a mortgage
      of $17.1 million which is included in our long-term debt. In addition,  we
      had unsecured  committed  revolving credit facilities of $2,035.0 million.
      There  were no  drawings  under the  revolving  credit  facilities  and no
      commercial paper was outstanding as of March 31, 2004.

9.    Included in operating  income for the three months ended March 31, 2004 is
      a pre-tax  net gain of $13.1  million  arising  from  investment  activity
      described below.

            In  March  2004,  in  connection  with  Seneca   Investments   LLC's
      ("Seneca") recapitalization, we agreed to exchange our remaining preferred
      stock  in  Seneca  for a $24.0  million  senior  secured  note  and 40% of
      Seneca's  outstanding  common stock. The note, which is due in March 2007,
      bears  interest  at  a  rate  of  6.25%  per  annum.   Prior  to  Seneca's
      recapitalization,  we were  accounting for our  investment  under the cost
      recovery method.  We will now account for this investment using the equity
      method.  The  recapitalization  transaction was required to be recorded at
      fair value and,  accordingly,  we  recorded  a net  pre-tax  gain of $24.0
      million.  This gain was  partially  offset by losses of $10.9  million  on
      other cost-based investments.

10.   The  following  pronouncement  was  issued  by  the  Financial  Accounting
      Standards Board ("FASB") in, or with effective  dates in, 2004:  Statement
      of Financial  Accounting  Standards No. 148,  Accounting  for  Stock-Based
      Compensation  - Transition  and  Disclosure - An Amendment of FASB No. 123
      (SFAS 148), which we adopted January 1, 2004, as discussed in Note 4.

            In March 2004, the FASB issued for exposure a Proposed  Statement of
      Financial  Accounting   Standards  entitled   "Share-Based  Payment  -  an
      amendment  of SFAS No. 123 and 95". The  proposal  requires  that the fair
      value of employee  stock-based  compensation  be  expensed.  Although  the
      proposal  differs from SFAS 123, as amended by SFAS 148, its  requirements
      will only apply to new grants of stock or  options to  employees.  We will
      continue  to monitor  the  progress  of the FASB with  regard to the final
      requirements of this new standard.


                                       6


                       OMNICOM GROUP INC. AND SUBSIDIARIES
        NOTES TO CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Continued)

            The following FASB  Interpretation  ("FIN") has an effective date in
      2004:  FIN  46,   Consolidation  of  Variable   Interest   Entities  -  An
      Interpretation of ARB No. 51, as amended by FIN 46R.

            FIN 46  addresses  the  consolidation  by  business  enterprises  of
      variable  interest  entities,  as  defined  in FIN 46, and is based on the
      concept that  companies that control  another  entity  through  interests,
      other than voting interests, should consolidate the controlled entity. The
      FASB  subsequently  issued FIN 46R in December 2003 that modified  certain
      provisions  of FIN 46.  FIN 46R must be  applied  to the  first  reporting
      period  after  March 15,  2004 and did not have an impact on, or result in
      additional disclosure in our financial statements.


                                       7


ITEM  2.  MANAGEMENT'S  DISCUSSION  AND  ANALYSIS OF  FINANCIAL  CONDITIONS  AND
          RESULTS OF OPERATIONS

Executive Summary

      We are a holding company. We own industry-leading  advertising,  marketing
and  corporate  communications  companies  that  span  more  than  30  marketing
disciplines,  100 countries,  1,500 subsidiary  agencies and 5,000 clients. On a
global,  pan-regional and local basis, our agencies  provide  traditional  media
advertising   services  as  well  as  marketing   services   including  customer
relationship management, public relations and specialty communications.

      Given our size and breadth,  we manage the business by monitoring  several
financial and non-financial  performance indicators.  The key indicators that we
review focus on the areas of revenues and operating expenses.

      Revenue  growth is analyzed by  reviewing  the  components  and mix of the
growth, including growth by major geographic location, growth by major marketing
discipline, growth from currency changes and growth from acquisition.

      Our revenue has been  divided  almost  evenly  between  our  domestic  and
international  operations.  In the first  quarter of 2004,  our overall  revenue
growth was 15.2%, of which 6.7% was related to changes in foreign exchange rates
and 2.7% was related to acquired  entities.  The  remainder,  5.8%,  was organic
growth.

      In the first quarter of 2004,  traditional media  advertising  represented
about 44% of the total revenue and grew by 13.9%. Marketing services represented
about 56% of total revenue and grew by 16.2%.

      We measure operating expenses in two distinct cost categories,  salary and
service  costs,  and  office  and  general  expenses.  Because  we are a service
business,  we monitor these costs on a percentage of revenue basis. On an annual
basis, salary and service costs tend to fluctuate in conjunction with changes in
revenues, whereas office and general expenses, which are not directly related to
servicing  clients,  tend to decrease as revenues increase because a significant
portion of these  expenses  are  relatively  fixed in  nature.  During the first
quarter of 2004,  salary and service  costs  increased  from 70.3% of revenue to
71.4% of revenue. Office and general expenses decreased from 19.3% of revenue to
18.3% of revenue. Included in office and general expenses was a pre-tax net gain
of $13.1 million related to investment  activity  during the quarter.  Excluding
this gain, office and general expenses were 18.9% of revenue. This gain was also
offset by $9.9 million of costs incurred in connection  with the disposal of two
non-strategic businesses.

      Our net income for the first quarter of 2004  increased by 17.4% to $135.6
million from $115.5  million in the first  quarter of 2003,  and our diluted EPS
increased by 16.1% to $0.72 from $0.62.

      In   accordance   with  SFAS  No.   123,   "Accounting   for  Stock  Based
Compensation",   as  amended  by  SFAS  No.  148,  "Accounting  for  Stock-Based
Compensation  - Transition and


                                       8


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

Disclosure,  an amendment of FASB  Statement  No.  123",  we elected,  effective
January 1, 2004, to account for stock-based employee compensation using the fair
value method. As a result, the fair value of stock-based employee  compensation,
including unvested employee stock options issued and outstanding,  were recorded
as an expense in the current period utilizing the retroactive restatement method
as set forth in SFAS 148.  Accordingly,  our results for the quarter ended March
31, 2003 have been  restated as if we had used the fair value  method to account
for stock-based employee compensation.  Results for the three months ended March
31, 2004 and 2003 included  $31.6 million and $34.7  million,  respectively,  of
pre-tax  stock-based  employee  compensation costs. Also, in connection with the
restatement,  the December 31, 2003 balance sheet presented reflects an increase
in the deferred tax benefit of $120.5 million, an increase in additional paid-in
capital of $434.7  million,  an increase in unamortized  stock  compensation  of
$92.6 million and a decrease in retained earnings of $221.6 million.

      The following  quarter-over-quarter  analysis  gives  further  information
about the changes in our financial performance.

Results of Operations:  First Quarter 2004 Compared to First Quarter 2003

      Revenue:  Our  first  quarter  of  2004  consolidated   worldwide  revenue
increased  15.2% to $2,231.4  million from  $1,937.2  million in the  comparable
period last year. The effect of foreign  exchange  impacts  increased  worldwide
revenue by $129.8 million.  Acquisitions,  net of disposals, increased worldwide
revenue  by $52.2  million  in the  first  quarter  of 2004 and  organic  growth
increased  worldwide  revenue by $112.2  million.  The  components  of the first
quarter 2004 revenue  growth in the U.S.  ("domestic")  and the remainder of the
world ("international") are summarized below ($ in millions):




                                                    Total                  Domestic             International
                                             -----------------        -----------------       ----------------
                                                 $          %             $           %           $         %
                                             --------      ---        --------      ---       --------     ---
                                                                                         
     March 31, 2003.......................   $1,937.2      --         $1,099.6      --        $  837.6      --

     Components of Revenue Changes:

     Foreign exchange impact..............      129.8      6.7%            --       --           129.8     15.5%
     Acquisitions.........................       52.2      2.7%           43.6     4.0%            8.6      1.0%
     Organic..............................      112.2      5.8%           78.0     7.1%           34.2      4.1%
                                             --------      ----       --------    ----        --------     ----
     March 31, 2004.......................   $2,231.4      15.2%      $1,221.2    11.1%       $1,010.2     20.6%
                                             ========      ====       ========    ====        ========     ====


The components and percentages are calculated as follows:

      o     The  foreign  exchange  impact  component  shown  in  the  table  is
            calculated by first  converting the current  period's local currency
            revenue using the average  exchange rates from the equivalent  prior
            period  to  arrive  at a  constant  currency  revenue  (in this case
            $2,101.6  million for the Total  column in the  table).  The foreign
            exchange  impact equals the  difference  between the current  period
            revenue in U.S. dollars and the current period


                                       9


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

            revenue in constant  currency  (in this case  $2,231.4  million less
            $2,101.6 million for the Total column in the table).

      o     The  acquisition  component  shown  in the  table is  calculated  by
            aggregating  the  applicable  prior  period  revenue of the acquired
            businesses.  Netted  against  this  number  is  the  revenue  of any
            business  included in the prior  period  reported  revenue  that was
            disposed of subsequent to the prior period.

      o     The  organic   component   shown  in  the  table  is  calculated  by
            subtracting  both  the  foreign  exchange  and  acquisition  revenue
            components from total revenue growth.

      o     The  percentage  change  shown  in the  table of each  component  is
            calculated by dividing the individual  component amount by the prior
            period revenue base of that component (in this case $1,937.2 million
            for the Total column in the table).

      The  components  of revenue and revenue  growth in our primary  geographic
markets for the first  quarter of 2004 compared to the first quarter of 2003 are
summarized below ($ in millions):

                                                       $ Revenue       % Growth
                                                       ---------       --------
              United States.......................      $ 1,221.2        11.1%
              Euro Denominated Markets............          455.8        17.7%
              United Kingdom......................          251.1        18.7%
              Other...............................          303.3        27.1%
                                                        ---------        ----
              Total...............................      $ 2,231.4        15.2%
                                                        =========        ====

      As indicated, foreign exchange impacts increased our international revenue
by $129.8 million during the quarter ended March 31, 2004. The most  significant
impacts resulted from the continued period-over-period strengthening of the Euro
and the  British  Pound  against the U.S.  dollar,  as our  operations  in these
markets represented approximately 70.0% of our international revenue.

      Several  long-term  trends  continue to  positively  affect our  business,
including our clients increasingly expanding the focus of their brand strategies
from national markets to the global market.  Additionally,  in an effort to gain
greater efficiency and effectiveness  from their marketing dollars,  clients are
increasingly requiring greater coordination of their traditional advertising and
marketing activities and concentrating these activities with a smaller number of
service providers.

      Driven by our clients'  continuous demand for more effective and efficient
branding  activities,  we strive to provide an extensive  range of  advertising,
marketing and corporate  communications  services through various client centric
networks that are organized to meet specific client  objectives.  These services
include   advertising,   brand  consultancy,   crisis   communications,   custom
publishing,  database  management,  digital and  interactive  marketing,


                                       10


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

direct marketing, directory advertising,  entertainment marketing, environmental
design,    experiential   marketing,   field   marketing,    financial/corporate
business-to-business   advertising,  graphic  arts,  healthcare  communications,
instore  design,  investor  relations,  marketing  research,  media planning and
buying,   multi-cultural   marketing,   non-profit   marketing,   organizational
communications, package design, product placement, promotional marketing, public
affairs,  public relations,  real estate advertising and marketing,  recruitment
communications,  reputation  consulting,  retail  marketing and sports and event
marketing.  In an effort to monitor  the  changing  needs of our  clients and to
further  expand the scope of our  services to key  clients,  we monitor  revenue
across a broad  range of  disciplines  and group  them into the  following  four
categories:  traditional media  advertising,  customer  relationship  management
(referred  to  as  CRM),  public  relations  and  specialty   communications  as
summarized below.




                                                                      (Dollars in Millions)
                                          -------------------------------------------------------------------
                                          1st Quarter  % of       1st Quarter   % of          $          %
                                             2004     Revenue        2003      Revenue      Growth     Growth
                                          ---------   -------      --------    -------      ------     ------
                                                                                     
Traditional media advertising             $  977.3     43.8%       $  858.1     44.3%       $119.2     13.9%
CRM                                          750.1     33.6%          630.2     32.5%        119.9     19.0%
Public relations                             239.2     10.7%          221.9     11.5%         17.3      7.8%
Specialty communications                     264.8     11.9%          227.0     11.7%         37.8     16.6%
                                          --------                 --------                 ------
                                          $2,231.4                 $1,937.2                 $294.2     15.2%
                                          ========                 ========                 ======


      Certain reclassifications have been made to the first quarter 2003 amounts
in the table  above to conform  the numbers to the first  quarter  2004  amounts
presented.

      Operating Expenses:  Our first quarter of 2004 worldwide operating expense
increased $267.1 million, or 15.4%, to $2,002.1 million from $1,735.0 million in
the first quarter of 2003, as shown below.




                                                                        (Dollars in Millions)
                                     ------------------------------------------------------------------------------------------
                                                                    Three Months Ended March 31,
                                     ------------------------------------------------------------------------------------------
                                                  2004                                  2003                     2004 vs 2003
                                     -------------------------------       -----------------------------      -----------------
                                                      %       % of                       %       % of
                                                     of     Total Op.                   of      Total Op.        $        %
                                       Revenue     Revenue   Costs         Revenue    Revenue    Costs         Growth   Growth
                                       -------     -------   -----         -------    -------    -----         ------   ------
                                                                                                 
Revenue ...........................   $ 2,231.4                            $1,937.2                           $ 294.2    15.2%

Operating expenses:
    Salary and service costs.......     1,593.6     71.4%    79.6%          1,362.0     70.3%    78.5%          231.6    17.0%
    Office and general expenses....       408.5     18.3%    20.4%            373.0     19.3%    21.5%           35.5     9.5%
                                      ---------     ----     ----          --------     -----    ----       ---------    ----
Total Operating Costs..............     2,002.1     89.7%                   1,735.0     89.6%                   267.1    15.4%

Operating profit...................   $   229.3     10.2%                  $  202.2     10.4%               $    27.1    13.4%
                                      =========                            ========                         =========


      Salary and service costs,  which are comprised of direct service costs and
salary related costs,  increased by $231.6  million,  or 17.0%,  and represented
79.6% of total  operating  expenses in the first quarter of 2004 versus 78.5% in
the first  quarter of 2003.  These  expenses  also  increased as a percentage of
revenue to 71.4% in the first quarter of 2004 from 70.3% in the first quarter of
2003 as a result of  increased  incentive  compensation  costs and  increases in
direct  service  costs,  including  increases in costs  relating to new business
initiatives


                                       11


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

and recruitment  costs, as well as changes in the mix of our revenues.  This was
partially  offset by our continued  efforts to increase the  variability  of our
cost structure on a  location-by-location  basis and the positive  impact in the
first quarter of 2004 of previous severance actions.

      Office and general  expenses  increased by $35.5 million,  or 9.5%, in the
first  quarter of 2004  compared to the same period in 2003.  Office and general
expenses  decreased as a percentage  of our total  operating  costs in the first
quarter of 2004 to 20.4% versus 21.5% in the prior  period.  Additionally,  as a
percentage  of  revenue,  office and  general  expenses  decreased  in the first
quarter of 2004 to 18.3% from 19.3%.

      Included  in office and general  expense  was a net gain of $13.1  million
related to investment  activity during the quarter. In March 2004, in connection
with Seneca's  recapitalization,  we agreed to exchange our remaining  preferred
stock in Seneca for a $24.0  million  senior  secured  note and 40% of  Seneca's
outstanding  common stock.  The note, which is due in March 2007, bears interest
at a rate of 6.25% per annum. The  recapitalization  transaction was required to
be  recorded  at fair value and  accordingly,  we recorded a pre-tax net gain of
$24.0  million.  This  gain was  offset  by  losses  of $10.9  million  on other
cost-based investments.

      Excluding the net gain of $13.1 million,  office and general expenses were
18.9% of revenue in the first quarter of 2004 and operating  margin decreased to
9.7% of revenue  compared to 10.4% of revenue in the first quarter of 2003. This
decrease in  operating  margin  resulted  primarily  from $9.9  million of costs
incurred in connection with the disposal of two non-strategic businesses.

      Net Interest  Expense:  Our net interest  expense in the first  quarter of
2004 was $10.4  million,  up  slightly  from $8.3  million in the same period in
2003. The increase in our gross interest expense of $13.7 million was attributed
to  incurring  additional  amortization  expense  primarily  related  to the two
interest payments made in 2003 on certain of our convertible notes. In addition,
interest expense  relative to the (euro)152.4  million 5.20% Euro note increased
due to the foreign  currency  change of the Euro relative to the U.S.  dollar in
the first quarter of 2004.  These  increases were partially  offset by increased
levels of cash on hand over the  prior  period  and  continued  cash  management
efforts during the course of the quarter.

      Income Taxes: Our consolidated  effective income tax rate was 33.6% in the
first quarter of 2004, which is consistent with our full year rate for 2003, but
is less than the 34.6% rate in the first quarter of 2003.  This  reduction  from
the first quarter of 2003 reflects the  realization  of our ongoing focus on tax
planning  initiatives,  including  a  reduction  of  the  inefficiencies  of our
international and state tax structures.


                                       12


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

      Earnings Per Share (EPS): For the foregoing reasons, our net income in the
first quarter of 2004,  increased  $20.1 million,  or by 17.4% to $135.6 million
from $115.5  million in the first  quarter of 2003.  Diluted  earnings per share
increased  16.1% to $0.72 in the first  quarter of 2004, as compared to $0.62 in
the prior year period.

Critical Accounting Policies

      To assist in better understanding our financial statements and the related
management's discussion and analysis of those results, readers are encouraged to
consider  this  information   together  with  our  discussion  of  our  critical
accounting policies under the heading  "Management's  Discussion and Analysis of
Financial Condition and Results of Operations" in our Annual Report on Form 10-K
for the year ended  December  31,  2003 (the "2003 Form  10-K"),  as well as our
consolidated  financial  statements  and the related notes  included in our 2003
Form 10-K, for a more complete understanding of all of our accounting policies.

Contingent Acquisition Obligations

      Certain of our  acquisitions  are structured  with  additional  contingent
purchase price obligations.  We utilize contingent  purchase price structures in
an effort to minimize the risk to us associated  with potential  future negative
changes in the  performance of the acquired  entity during the  post-acquisition
transition period. The amount of future contingent  purchase price payments that
we would be required to pay for prior  acquisitions,  assuming that the acquired
businesses  perform over the relevant  future  periods at their  current  profit
levels,  is  approximately  $435.0  million as of March 31,  2004.  The ultimate
amount  payable  cannot be predicted  with  reasonable  certainty  because it is
dependent upon future results of operations of subject businesses and subject to
changes in foreign currency exchange rates. In accordance with GAAP, we have not
recorded a liability for these items on our balance  sheet since the  definitive
amount is not  determinable  or  distributable.  Actual  results can differ from
these  estimates  and the actual  amounts that we pay are likely to be different
from these estimates.  Our obligations  change from period to period as a result
of payments made during the current period,  changes in the previous estimate of
the acquired entities'  performance,  changes in foreign currency exchange rates
and other  factors.  These  differences  could be  significant.  The  contingent
purchase price  obligations as of March 31, 2004,  calculated  assuming that the
acquired  businesses  perform over the relevant  future periods at their current
profit levels, are as follows:

                              (Dollars in Millions)
       ---------------------------------------------------------------------
       Remainder                                          There-
          2004         2005        2006        2007       after       Total
          ----         ----        ----        ----       -----        -----
         $ 162        $ 155        $ 47        $ 42        $ 29        $ 435

      In  addition,  owners of  interests  in  certain  of our  subsidiaries  or
affiliates  have the right in certain  circumstances  to require us to  purchase
additional  ownership stakes in these subsidiaries or affiliates.  Assuming that
the  subsidiaries  and  affiliates  perform over the  relevant  periods at


                                       13


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

their current profit levels, the aggregate amount we could be required to pay in
future periods is approximately  $258.0 million,  $159.0 million of which relate
to  obligations  that are currently  exercisable.  The ultimate  amount  payable
relating to these  transactions  will vary because it is dependent on the future
results of operations of the subject  businesses,  the timing of the exercise of
these rights,  changes in foreign currency exchange rates and other factors. The
actual amount that we pay is likely to be different from this estimates, and the
difference could be significant. The obligations that exist for these agreements
as of March 31, 2004, calculated using the assumptions above, are as follows:

                                             (Dollars in Millions)
                                 --------------------------------------------
                                 Currently        Not Currently
                                 Exercisable       Exercisable          Total
                                 -----------       -----------          -----
     Subsidiary agencies         $ 135                $  92             $ 227
     Affiliated agencies            24                    7                31
                                 -----                -----             -----
          Total                  $ 159                $  99             $ 258
                                 =====                =====             =====

If these  rights are  exercised,  there  would  likely be an increase in our net
income  as a result of our  increased  ownership  and a  reduction  of  minority
interest expense.

Liquidity and Capital Resources

      Our principal non-discretionary funding requirement is our working capital
requirement.  In addition,  we have contractual  obligations related to our debt
and convertible  notes, our recurring business  operations  primarily related to
lease obligations, as well as certain contingent acquisition obligations related
to acquisitions made in prior years.

      Our principal discretionary cash requirements include dividend payments to
our   shareholders,   purchases  of  treasury  stock,   payments  for  strategic
acquisitions and capital expenditures.

      We have a seasonal working capital cycle. Working capital requirements are
lowest at year-end and higher  during the quarters.  This occurs  because in the
majority of our  businesses we act as agent on behalf of our clients,  including
when we place media and incur  production  costs on their  behalf.  We generally
require  collection  from our  clients  prior to our  payment  for the media and
production  costs  obligations and these  obligations are greatest at the end of
the year.

      Historically,  on an annual basis, our discretionary and non-discretionary
spending has been funded from operating cash flow.  However,  during the year we
manage liquidity by utilizing our credit facilities discussed below.


                                       14


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

      Liquidity:  We had cash and cash  equivalents  totaling $519.3 million and
$1,528.7  million and  short-term  investments  totaling $25.0 million and $20.2
million at March 31, 2004 and December 31, 2003,  respectively.  Consistent with
our  historical  trends in the first  quarter of the year,  we had negative cash
flow from operations of $786.4  million,  including tax payments and payments to
vendors and to the media on behalf of clients.  This  resulted in a  significant
reduction in our year-end current liabilities.  We funded these liabilities with
cash on hand and by drawing down on available credit facilities.

      Capital  Resources:  We maintain two revolving credit  facilities with two
consortia of banks, a three-year  $835.0 million revolving credit facility which
matures  November 14, 2005,  and a $1,200.0  million  364-day  revolving  credit
facility  with a  maturity  date of  November  12,  2004.  We are also an active
participant in the commercial paper market with a $1,500.0 million program. Each
of our bank credit  facilities  provide credit support for issuances  under this
program.  As of March 31, 2004,  we had no  borrowings  outstanding  under these
credit facilities.  The 364-day facility includes a provision which allows us to
convert all amounts  outstanding  at  expiration of the facility into a one-year
term loan. The consortium under the 364-day credit facility consists of 24 banks
for which Citibank N.A. acts as agent.  Other significant  lending  institutions
include  HSBC Bank USA,  JPMorgan  Chase Bank,  Wachovia,  Societe  Generale and
Barclays. A similar consortium of 16 banks provides support under the three-year
revolving credit facility for which Citibank N.A. acts as  administrative  agent
and ABN AMRO Bank acts as syndication  agent.  These facilities  provide us with
the ability to classify up to $2,035.0  million of our borrowings due within one
year  as  long-term  debt,  as  it is  our  intention  to  keep  the  borrowings
outstanding on a long-term basis.

      We had  short-term  bank loans of $61.8 million and $42.4 million at March
31, 2004 and December 31, 2003,  respectively,  which are  comprised of domestic
borrowings and bank overdrafts of our international subsidiaries and are treated
as unsecured loans pursuant to our bank agreements.

      At March 31, 2004, we had a total of $2,339.3 million aggregate  principal
amount of convertible notes  outstanding,  including $847.0 million Liquid Yield
Option Notes due 2031,  which were issued in February 2001,  $892.3 million Zero
Coupon Zero Yield  Convertible  Notes due 2032, which were issued in March 2002,
and $600.0 million Zero Coupon Zero Yield Convertible Notes due 2033, which were
issued in June 2003.

      At  March  31,  2004,  we  had   Euro-denominated   bonds  outstanding  of
(euro)152.4  million  or $187.7  million.  The bonds pay a fixed rate of 5.2% to
maturity in June 2005.  While an  increase in the value of the Euro  against the
U.S. dollar will result in a greater liability for interest and principal, there
will be a corresponding increase in the dollar value of our Euro-denominated net
assets.

      Our outstanding  debt and amounts  available under these  facilities as of
March 31, 2004 ($ in millions) were as follows:


                                       15


ITEM  2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS AND
         RESULTS OF OPERATIONS (Continued)

                                                              Debt     Available
                                                          Outstanding   Credit
                                                          -----------  ---------
    Bank loans (due in less than 1 year).................  $   61.8          --
    $835.0 Million Revolver - due November 14, 2005......        --    $  835.0
    Commercial paper issued under 364-day Facility.......        --     1,200.0
    (euro)152.4 million 5.20% Euro
      notes - due June 24, 2005..........................     187.7          --
    Convertible notes - due February 7, 2031.............     847.0          --
    Convertible notes - due July 31, 2032................     892.3          --
    Convertible notes - due June 15, 2033................     600.0          --
    Loan notes and sundry - various through 2012.........      25.8          --
                                                           --------    --------
Total....................................................  $2,614.6    $2,035.0
                                                           ========    ========

      We believe that our operating cash flow combined with our available  lines
of credit and our access to the capital  markets are  sufficient  to support our
foreseeable cash requirements,  including working capital, capital expenditures,
dividends and acquisitions.


                                       16


ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market Risk

      Our results of operations are subject to risk from the  translation to the
U.S.  dollar of the revenue and  expenses of our foreign  operations,  which are
generally denominated in the local currency. For the most part, our revenues and
the expenses  incurred  related to those  revenues are  denominated  in the same
currency.  This  minimizes the impact that  fluctuations  in exchange rates will
have on profit margins.

      Our 2003 Form 10-K provides a more detailed discussion of the market risks
affecting our operations.  As of March 31, 2004, no material change had occurred
in our market risks from the disclosure contained in that 10-K.

Forward-Looking Statements

      "Management's  Discussion and Analysis of Financial  Condition and Results
of Operations" and "Quantitative and Qualitative  Disclosures About Market Risk"
set  forth  in  this  report  contain   disclosures  which  are  forward-looking
statements  within the meaning of the federal  securities laws.  Forward-looking
statements  include all  statements  that do not relate  solely to historical or
current facts,  and can be identified by the use of words such as "may," "will,"
"expect," "project," "estimate," "anticipate," "envisage," "plan" or "continue."
These   forward-looking   statements   are  based  upon  our  current  plans  or
expectations and are subject to a number of  uncertainties  and risks that could
significantly  affect  current  plans and  anticipated  actions  and our  future
financial  condition and results.  The uncertainties and risks include,  but are
not limited to, changes in general  economic  conditions,  competitive  factors,
client communication  requirements,  the hiring and retention of human resources
and other factors. In addition, our international  operations are subject to the
risk of currency  fluctuations,  exchange  controls and similar risks  discussed
above. As a consequence, current plans, anticipated actions and future financial
condition  and results may differ from those  expressed  in any  forward-looking
statements made by us or on our behalf, and those differences could be material.


                                       17


ITEM 4. CONTROLS AND PROCEDURES

      We maintain  disclosure  controls and  procedures  designed to ensure that
information required to be included in our SEC reports is recorded, analyzed and
reported within  applicable time periods.  During the 90-day period prior to the
filing of this report,  we conducted an evaluation,  under the  supervision  and
with the  participation  of our  management,  including  our CEO and CFO, of the
effectiveness  of  our  disclosure  controls  and  procedures.   Based  on  that
evaluation,  our CEO and CFO  concluded  that they believe  that our  disclosure
controls  and  procedures  are  effective  to  ensure  recording,  analysis  and
reporting of information  required to be included in our SEC reports on a timely
basis. There have been no significant  changes in our internal controls or other
factors  that  could  be  reasonably   expected  to  significantly   affect  the
effectiveness of these controls since that evaluation was completed.


                                       18


PART II. OTHER INFORMATION

Item 2. Changes in  Securities,  Use of Proceeds and Issuer  Purchases of Equity
Securities

      The  following  table  presents  information  with respect to purchases of
      common  stock of the Company  made during the three months ended March 31,
      2004 by Omnicom Group Inc. or any "affiliated  purchaser" of Omnicom Group
      Inc., as defined in Rule 10b-18(a)(3) under the Exchange Act.




                                                                     (c) Total Number
                                                                    of Shares Purchased        (d) Maximum Number
                                    (a) Total        (b) Average   As Part of Publicly of      of Shares that May
                                    Number of         Price Paid       Announced Plans       Yet Be Purchased Under
                               Shares Purchased(1)    Per Share           or Programs        the Plans or Programs
                               -------------------    ---------        ---------------       -----------------------
                                                                                                
      January 1, 2004 through
      January 31, 2004               435,000            $83.44                    --                        --

      February 1, 2004 through
      February 29, 2004            1,243,100            $81.00                    --                        --

      March 1, 2004 through
      March 31 2004                   53,500            $76.31                    --                        --
                                   ---------            ------              --------                  --------
      Total                        1,731,600            $81.47                    --                        --
                                   =========            ======              ========                  ========


      (1) The shares  purchased below have been purchased in the open market for
          general corporate purposes.

Item 6. Exhibit and Reports on Form 8-K

(a)   Exhibits

      31.1  Certification  of Chief Executive  Office and President  required by
            Rule  13a-14(a)  under  the  Securities  Exchange  Act of  1934,  as
            amended.

      31.2  Certification  of  Executive  Vice  President  and  Chief  Financial
            Officer required by Rule 13a-14(a) under the Securities Exchange Act
            of 1934, as amended.

      32.1  Certification  of the Chief Executive  Officer and President and the
            Executive Vice  President and Chief  Financial  Officer  required by
            Rule  13a-14(b)  under the Exchange Act of 1934, as amended,  and 18
            U.S.C. ss. 1350.

(b)   Reports on Form 8-K

      On February 17, 2004, we furnished a Current Report on Form 8-K to furnish
      under Item 9.  Regulation FD Disclosure and Item 12. Results of Operations
      and  Financial  Condition,  our earnings  release  reporting our financial
      results and the fiscal  quarter and twelve months ended  December 31, 2003
      and the text of  materials  used in the related call at which such results
      were discussed.

      On March 15, 2004,  we  furnished a Current  Report on Form 8-K to furnish
      under Item 9.  Regulation FD Disclosure and Item 12. Results of Operations
      and  Financial  Condition,  the effect of the  adoption of SFAS 123 on our
      historical  financial statements for the years ended December 31, 2003 and
      2002, and for each of our fiscal quarters ended in 2003.


                                       19


                                   SIGNATURES

      Pursuant to the  requirements of the Securities  Exchange Act of 1934, the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                            OMNICOM GROUP INC.


May 7, 2004                                 /s/ Randall J. Weisenburger
                                            -----------------------------------
                                            Randall J. Weisenburger
                                            Executive Vice President
                                            and Chief Financial Officer
                                            (on behalf of Omnicom Group Inc.
                                            and as Principal Financial Officer)


                                       20