Dated February 27, 1996

                               OMNICOM GROUP INC.

                                     - and -

                     MORGAN STANLEY BANK AKTIENGESELLSCHAFT

                             ----------------------

                             PAYING AGENCY AGREEMENT

                                 DM 100,000,000

                  Floating Rate Bonds of 1996 due March 1, 1999

                             ----------------------



                         HENGELER MUELLER WEITZEL WIRTZ

                                Frankfurt am Main





PAYING AGENCY AGREEMENT dated February 27, 1996

between

(1) OMNICOM GROUP INC. (the "Issuer"),

(2) MORGAN STANLEY BANK AKTIENGESELLSCHAFT as paying agent (the "Bank").

The Issuer and a syndicate of financial  institutions (the "Managers") under the
lead  management  of the Bank have entered into a  Subscription  Agreement  (the
'"Subscription Agreement") dated February 27, 1996, pursuant to which the Issuer
has agreed to issue,  and the Managers have agreed to purchase,  DM  100,000,000
Floating Rate Bonds of 1996 due March 1, 1999 (the "Bonds").

ss. 1 Definitions

In this Agreement the terms defined in the Subscription  Agreement and the Terms
and  Conditions of the Bonds (the  "Conditions")  exhibited to the  Subscription
Agreement  in  Schedule 1 thereof  shall  have the same  meaning  herein  unless
otherwise  required by the  context,  and "Paying  Agent"  means the Bank in its
capacity as Paying  Agent in respect of the Bonds and any  successor of the Bank
in such  capacity  appointed  in  accordance  with ss.  6(5) of the  Conditions,
"Luxembourg Paying Agent" means the financial  institution mentioned in ss. 6(7)
of the  Conditions  in its  capacity as paying agent in respect of the Bonds for
the time of its appointment and any other financial  institution  appointed from
time to time as paying agent in accordance with ss. 6(5) of the Conditions,  and
"Agents" means the Paying Agent and the Luxembourg Paying Agent.

ss. 2 Appointment of Agents

(1) The Issuer  hereby  appoints  the Bank as its Paying Agent in respect of the
Bonds and the Paying Agent accepts its appointment hereunder.

The Paying Agent shall have the rights and duties set out in the  Conditions and
in this  Agreement  and such  rights  and  duties as are  reasonably  incidental
thereto.

(2) The Issuer hereby  ratifies (i) the  appointment by the Paying Agent, in the
name and on behalf of the Issuer,  of the Luxembourg  Paying Agent  mentioned in
ss. 6(7) of the Conditions and (ii) the making by the Paying Agent,  in the name
and on behalf of the Issuer,  of the necessary  arrangements with the Luxembourg
Paying Agent  regarding its services as paying agent.  The Paying Agent warrants
to the Issuer that those  arrangements  are appropriate for the purpose and that
each Paying Agent has agreed to be liable to the Issuer in terms  comparable  to
those set out in ss. 10(2) hereof.



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ss. 3 The Bonds

(1) Form.  The Temporary  Global Bond,  the Permanent  Global Bond (together the
"Global Bonds") and the definitive Bonds with interest coupons attached shall be
substantially in the respective form set out in the Subscription Agreement.

(2) The Global Bonds. The Global Bonds shall be signed manually on behalf of the
Issuer by two duly authorized  signatories of the Issuer or by a duly authorized
attorney  of the Issuer.  The Issuer  shall make the duly  signed  Global  Bonds
available to the Paying Agent not later than two  Frankfurt  banking days before
the Closing  Date.  The Paying  Agent shall  authenticate  the signed  Temporary
Global Bond and deliver it, value the Closing Date, to Deutscher Kassenverein AG
for the account of the Managers. On or after the date which is 40 days after the
Closing Date the Paying Agent shall  authenticate  the Permanent Global Bond and
deliver it to Deutscher Kassenverein AG in accordance with the provisions of the
Temporary Global Bond and the Permanent Global Bond.

(3) The Definitive Bonds.

(a) Form. The definitive Bonds and interest  coupons,  if any, shall be executed
in  facsimile  on behalf of the  Issuer by a duly  authorized  signatory  of the
Issuer.  The definitive  Bonds and the interest coupons shall bear such letters,
numbers or other  marks of  identification  as shall be  determined  by the duly
authorized signatory of the Issuer executing such Bonds and interest coupons, as
conclusively evidenced by his execution thereof.

(b) Notice.  The Paying Agent shall promptly notify the Issuer of any request by
a Bondholder to exchange  Bonds  represented  by the  Permanent  Global Bond for
definitive  Bonds,  whereupon  the Issuer  shall  deliver  to the  Paying  Agent
definitive  Bonds in a principal  amount  equal to the  principal  amount of the
Bonds to be  exchanged  which  shall be  authenticated  by the Paying  Agent and
delivered to Deutscher Kassenverein AG for delivery to the Bondholders.

ss. 4 Payments

(1)  Payment by  Issuer.  Not later  than  10:00  a.m.  (Frankfurt  time) on the
respective  due date for the payment of principal,  interest or  otherwise,  the
Issuer shall pay to the Paying  Agent in same day funds the monies  required for
the payment of principal,  interest or otherwise in such currency as at the time
of payment shall be legal tender in the Federal Republic of Germany.  The Issuer
shall confirm to the Paying Agent not later than 10:00 a.m.  (Frankfurt time) on
the second  banking day in Frankfurt am Main before the  respective due date for
any such payment that it has issued  irrevocable  payment  instructions for such
payment to be made. The Paying Agent shall contact the Issuer not later than ten
banking days before the  respective  due date with regard to such  payment.  Any


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payment hereunder shall be made to a redemption  account in Frankfurt am Main as
the Paying  Agent may from time to time  notify to the Issuer.  Such  redemption
account will bear no interest.

As used in this  Agreement,  "banking day" means any day on which banks are open
for business in Frankfurt am Main.

(2) Advances.  If the monies required for the payment of principal,  interest or
otherwise are not, or not fully, received by the Paying Agent at the time and in
the manner  provided for in subsection  (1) and if the Paying Agent has received
the  confirmation  mentioned  in  subsection  (l),  the  Paying  Agent  shall be
entitled, but not in any event be obliged, to advance the necessary funds and to
charge  interest  on the amount of such  advance at the rate  applied by it from
time to time on overdraft facilities extended to prime borrowers.

(3) Notification.  If the Paying Agent has not by 12:00 p.m. (Frankfurt time) on
the second banking day before the respective due date received the  confirmation
referred to in subsection (l), it shall forthwith notify the Issuer thereof.

ss. 5 Cancellation

On the exchange of the whole of the Temporary Global Bond for Bonds  represented
by the  Permanent  Global  Bond the Paying  Agent  shall  collect and cancel the
Temporary Global Bond. On the exchange of the whole of the Permanent Global Bond
for definitive  Bonds or upon full and final payment of principal,  interest and
any other moneys payable in respect of the Bonds, the Paying Agent shall collect
and cancel the  Permanent  Global  Bond.  The Paying  Agent  shall  deliver  the
canceled  Global  Bonds to the  Issuer.  The Paying  Agent shall bear no further
responsibility for the Global Bonds so cancelled.

ss. 6 Notices

(1) At the request of the Issuer the Paying Agent shall cause to be published in
accordance  with  ss.  11 of  the  Conditions  any  notice  to be  given  to the
Bondholders  in accordance  with the  Conditions or necessary to comply with the
requirements of any stock exchange on which the Bonds are listed.

(2) If the Paying Agent has not  received the full amount of the monies  payable
to the Bondholders in respect of the Bonds on or prior to the date on which such
monies are  payable to it in  accordance  with ss. 4 (1) and if such monies have
not been  advanced by the Paying  Agent under ss.  4(2),  the Paying Agent shall
notify the Issuer thereof and publish a notice thereof in accordance with ss. 11
of the Conditions.

(3) If the Issuer shall elect to redeem the Bonds under ss. 5 of the  Conditions
it shall not less than 30 days prior to the latest date for the  publication  of


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the notice of redemption to be given to Bondholders,  notify the Paying Agent of
such intention stating the date on which the Bonds are to be redeemed.

ss. 7 Documents

The Issuer shall provide to the Paying Agent for  distribution  among the Agents
sufficient  copies of any  document  required by the  Conditions,  the  Offering
Memorandum  or any stock  exchange on which the Bonds are listed to be available
for issue or delivery to, or  inspection  by,  Bondholders.  Upon request of any
person,  the Paying Agent shall,  and shall  procure that the other Agents will,
make copies of such documents so available to such person.

ss. 8 Other Provisions

(1) No Agency or Trust Relationship.  The Agents are acting solely as agents for
the  Issuer  and do not have  any  relationship  of  agency  or  trust  with the
Bondholders. The Paying Agent shall be released from the restrictions set out in
ss. 181 German Civil Code.

(2) No Lien. The Paying Agent shall not, and shall procure that the other Agents
will not, have any lien,  right of retention,  right of set-off or similar right
in respect of any monies  paid or  payable  to or by it  hereunder  against  the
Issuer, any Bondholder or any other person.

(3) No Liability for  Interest.  No Agent shall have any liability to any person
for interest on any monies held by it pursuant to this Agreement.

(4) Taking of Advise.  The Paying Agent may consult on any legal matter with any
legal adviser satisfactory to it and any advise or written opinion of such legal
adviser shall be full and complete  authorization  and  protection in respect of
any action taken,  suffered or omitted to be taken by it hereunder in good faith
and in accordance with such advise or opinion.

(5) Document  Believed to be Genuine.  The Paying  Agent shall be protected  and
shall incur no liability  for or in respect of any action taken or omitted to be
taken or loss suffered by it in reliance upon any Global Bond,  definitive Bond,
notice,  statement  or other paper or document  reasonably  believed by it to be
genuine and to have been presented or signed by the proper party or parties.

ss. 9 Commissions and Expenses

(1)  Commissions.  The Issuer  shall in respect  of the  services  of the Agents
pursuant to this Agreement pay to the Paying Agent the  commissions  and fees as
separately agreed between the Issuer and the Paying Agent. The Issuer shall have
no  responsibility  with respect to the  apportionment of such monies as between
the Paying Agent and the other Agents.



                                       5


(2)  Expenses.  The  Issuer  shall  pay  to  the  Paying  Agent  all  reasonable
out-of-pocket  expenses  (including  legal,  publication,  insurance,  telex and
postage  expenses)  properly  incurred  by the Agents in  connection  with their
services. Subsection (1), sentence 2 shall apply analogously.

ss. 10 Indemnities

(1) By Issuer.  The Issuer shall  indemnify each of the Agents against any loss,
liability,  expense or claim (including all reasonable expenses paid or incurred
in disputing or defending any of the foregoing)  which it may incur or which may
be made  against it arising out of or in relation to or in  connection  with its
appointment or the performance of its functions,  except such as may result from
a violation by it of its  obligations  under or pursuant to this  Agreement  for
which the Agent is responsible under general provisions of German law.

(2) By Paying Agent.  The Paying Agent shall  indemnify  the Issuer  against any
loss, liability, expense or claim (including, but not limited to, all reasonable
expenses paid or incurred in disputing or defending any of the foregoing)  which
the  Issuer  may  incur  or which  may be made  against  it as a  result  of the
violation by the Paying Agent of its obligations  under this Agreement for which
it is responsible under general provisions of German law.

ss. 11 Change of Agents

The change of Agents shall be governed by the  provisions of ss. 6(5) and (7) of
the Conditions.

ss. 12 Communications

(1) Any document or information furnished or supplied under this Agreement shall
be in the English language.

(2) All  communications  given hereunder shall be given by letter,  or by telex,
cable or facsimile transmission to be confirmed by letter.


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(3) Subject to written notice of change of address, all communications hereunder
shall be given to the following addresses:

                  (a)  If to the Issuer:

                       Omnicom Group Inc.
                       437 Madison Avenue
                       New York, N.Y. 10022
                       U.S.A.

                       Telefax: 212 415 3530
                       Attention: Chief Financial Officer

                  (b)  If to the Paying Agent:

                       Morgan Stanley Bank AG
                       RahmhofstraBe 2-4
                       60313 Frankfurt am Main
                       Federal Republic of Germany

                       Telefax: 69 2166 1399
                       Telex: 412 648
                       Attention: New Issues Department

ss. 13 Severability

Should any  provision  of this  Agreement be or become void in whole or in part,
the other provisions of this Agreement shall remain in force. The void provision
shall be deemed  substituted by a valid provision  which  accomplishes as far as
legally possible the economic purposes of the void provision.

ss. 14 Stamp Taxes

The Issuer shall pay all stamp or other  documentary taxes or duties, if any, to
which this  Agreement  may be  subject  in the  United  States of America or the
Federal Republic of Germany.

ss. 15 Governing Law: Place of Performance

(1) This  Agreement  shall in all  respects be  governed  by, and  construed  in
accordance with, the laws of the Federal Republic of Germany.

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(2) Place of performance for the obligations of all parties hereto shall be 
Frankfurt am Main.

ss. 16 Place of Jurisdiction

Any action or other legal proceedings  arising out of or in connection with this
Agreement  ("Proceedings")  shall be brought in the District Court (Landgericht)
in  Frankfurt  am  Main.  The  Issuer  hereby   appoints  Hasche  &  Eschenlohr,
Rechtsanwalte,  BriennerstraBe 11/V, D-80333 Munich, as its agent for service of
process with respect to any proceedings brought before any German court.

ss. 17 Conditionality

Except  for  the  obligations  of the  Issuer  under  ss.  14,  the  rights  and
obligations of the parties  hereunder  shall be conditional on the occurrence of
the Closing under the Subscription Agreement.

ss. 18 Counterparts

This  Agreement is executed in two  counterparts  in the English  language.  One
executed  counterpart is issued to each party hereto. Each executed  counterpart
shall be an original.


OMNICOM GROUP INC.


By
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MORGAN STANLEY BANK AKTIENGESELLSCHAFT


By
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