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                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549



                                    FORM 8-K


                                 CURRENT REPORT


     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


                                April 14, 1999
                Date of Report (Date of earliest event reported)


                         Global TeleSystems Group, Inc.
             (Exact name of registrant as specified in its charter)


          Delaware                       0-23717                94-3068423
(State or other jurisdiction    (Commission File Number)       (IRS Employer
      of incorporation)                                      Identification No.)


                  1751 Pinnacle Drive
                North Tower, 12th Floor
                   McLean, VA  22102                      22102
       (Address of principal executive offices)         (Zip Code)


                                 (703) 918-4500
              (Registrant's telephone number, including area code)
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Item 5.          Other Events
 
        On April 14, 1999, we announced our agreement to buy 52 percent of
the shares of Omnicom, a French corporation, for euro 194.6 million
(approximately $210 million). The total consideration is to be paid 50% in
cash (approximately $103,000,000) and 50% in GTS shares. The 1,850,497 GTS
shares will be unregistered and are therefore subject to transfer restrictions,
unless transferred in compliance with, or pursuant to an exemption from the
Securities Act of 1933 (the "Securities Act"). Certain of the Omnicom majority 
shareholders have agreed to the following:

        o to place a total of approximately 20% of the GTS shares acquired in
          escrow until the later of June 30, 2000 and thirty days after the
          filing of our Form 10-K for year end December 31, 1999; and

        o not to transfer a total of approximately 30% of the GTS Shares
          acquired until six months after the date of acquisition.

We have completed our acquisition of these shares.

        As required by French law and regulation, we have filed with the Conseil
des Marches Financiers and are proceeding with an offer to purchase the
remaining minority shares and the convertible bonds of Omnicom. Our board and
the board of Omnicom have approved the agreement and endorse the pending offer
to the remaining minority shareholders and convertible bond holders. We have not
made this offer to Omnicom securityholders in the United States, mailed or
distributed the offer to purchase in the United States or accepted any Omnicom
securityholders' acceptances mailed to us from the United States.

        Omnicom is one of the country's first telecommunications providers to
successfully challenge France Telecom's network. Omnicom is the second operator
to connect with France Telecom and also holds a national network operator's
license for France. Excluding France Telecom, Omnicom is the leading provider of
telecommunications services for small and medium-sized businesses in France.
Omnicom markets its services through both a direct sales force and sales agents
throughout France. Omnicom's other service offerings include the sale and
distribution of pre-paid cards to outlets in France and the offering of
telecommunications services to residential customers.

        We believe that Omnicom's business is complementary with ours and
benefits will result from combining the two companies.

        On April 19, 1999, we filed a prospectus supplement to our previously 
filed shelf registration statement for an underwritten public offering of
6,227,921 shares of our common stock (including 812,337 shares exercised
pursuant to the underwriters over-allotment option) owned by two holders, Apax
Funds Nominees Limited and Warburg, Pincus Ventures, L.P. (the "Selling
Stockholders").  The shelf registration statement was declared effective by the
Securities and Exchange Commission Act ("SEC") on April 19, 1999.  The Selling
Stockholders received all of the net proceeds from this offering.

        On April 19, 1999, we offered, pursuant to exemptions from registration
under the Securities Act, US$500,000,000 of depositary shares (including
US$65,000,000 of depositary shares exercised pursuant to the underwriters
over-allotment option) (the "Shares"), each representing 1/100 of a share of 7
1/4% cumulative convertible preferred stock (the "Preferred Stock").  Each Share
has a liquidation preference of $50 per share. Holders of the Shares are
entitled to quarterly cash payments of $.90625 per Share commencing on June 15,
1999.  We have agreed to register with the SEC the Shares and the common stock
issuable upon conversion of the Preferred Stock. We realized net proceeds, after
underwriting discounts and commissions, of $485,000,000 and intend to use such
proceeds for general corporate purposes, including business development.

ITEM 7. FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND EXHIBITS

        (c.)  Exhibits


      
Designation       Description of Exhibit               
- -----------       ----------------------               
                                             
    4.1         Registration Rights Agreement dated as of April 23, 1999 by and
                among Global TeleSystems Group, Inc., and Merrill Lynch, 
                Pierce, Fenner & Smith Incorporated, Donaldson Lufkin & 
                Jenrette Securities Corporation, Bear, Stearns & Co. Inc., BT 
                Alex. Brown Incorporated and Lehman Brothers Inc.
       
   10.1         Purchase Agreement dated as of April 19, 1999 by and among
                Global TeleSystems Group, Inc., and Apax Funds Nominees Limited
                and Warburg,  Pincus Ventures, L.P. and Merrill Lynch & Co., 
                Merrill Lynch, Pierce, Fenner &  Smith Incorporated, Donaldson,
                Lufkin & Jenrette Securities Corporation, Bear,  Stearns & Co.
                Inc., Dresdner Kleinwort Benson North American LLC, BT Alex.
                Brown Incorporated, Lehman Brothers Inc., Prudential Securities
                Incorporated, ING Baring Furman Selz LLC, BancBoston Robertson
                Stephens Inc., CIBC  Oppenheimer Corp., ABN Amro Incorporated, 
                Arnhold and S. Bleichroeder, Inc. and Credit Suisse First 
                Boston Corporation.
       
   10.2         Purchase Agreement dated as of April 19, 1999 by and among
                Global TeleSystems Group, Inc. and Merrill Lynch & Co., 
                Merrill Lynch, Pierce, Fenner  & Smith Incorporated, Donaldson,
                Lufkin & Jenrette Securities Corporation,  Bear, Stearns & Co.,
                Inc., BT Alex. Brown Incorporated and Lehman Brothers Inc.

   10.3         Agreement for the transfer of Omnicom Shares dated as of April
                14, 1999 by and among Alain Nicolazzi, Florent 
                Martenne-Duplan, Philippe Ait Yahia and various other Omnicom
                shareholders and Esprit Telecom Holdings, Limited and Global
                TeleSystems Group, Inc.

   



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                                   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 hereunto duly authorized.

                                        Global TeleSystems Group, Inc.
                                        (Registrant)



Date:  April 28, 1999                   /s/ Alan Krenek
                                        Vice President -
                                        Corporate Accounting

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                                EXHIBIT INDEX


Designation                  Description of Exhibit               
- -----------                  ----------------------
               
    4.1         Registration Rights Agreement dated as of April 23, 1999 by and
                among Global TeleSystems Group, Inc., and Merrill Lynch, 
                Pierce, Fenner & Smith Incorporated, Donaldson Lufkin & 
                Jenrette Securities Corporation, Bear, Stearns & Co. Inc., BT 
                Alex. Brown Incorporated and Lehman Brothers Inc.
       
   10.1         Purchase Agreement dated as of April 19, 1999 by and among
                Global TeleSystems Group, Inc., and Apax Funds Nominees Limited
                and Warburg,  Pincus Ventures, L.P. and Merrill Lynch & Co., 
                Merrill Lynch, Pierce, Fenner &  Smith Incorporated, Donaldson,
                Lufkin & Jenrette Securities Corporation, Bear,  Stearns & Co.
                Inc., Dresdner Kleinwort Benson North American LLC, BT Alex.
                Brown Incorporated, Lehman Brothers Inc., Prudential Securities
                Incorporated, ING Baring Furman Selz LLC, BancBoston Robertson
                Stephens Inc., CIBC  Oppenheimer Corp., ABN Amro Incorporated, 
                Arnhold and S. Bleichroeder, Inc.  and Credit Suisse First 
                Boston Corporation.
       
   10.2         Purchase Agreement dated as of April 19, 1999 by and among
                Global TeleSystems Group, Inc. and Merrill Lynch & Co., 
                Merrill Lynch, Pierce, Fenner  & Smith Incorporated, Donaldson,
                Lufkin & Jenrette Securities Corporation,  Bear, Stearns & Co.,
                Inc., BT Alex. Brown Incorporated, Lehman Brothers Inc.

   10.3         Agreement for the transfer of Omnicom Shares dated as of April
                14, 1999 by and among Alain Nicolazzi, Florent 
                Martenne-Duplan, Philippe Ait Yahia and various other Omnicom
                shareholders and Esprit Telecom Holdings, Limited and Global
                TeleSystems Group, Inc.