FIRST AMENDMENT TO PREFERRED STOCKHOLDERS' AGREEMENT

     This  FIRST   AMENDMENT  TO   PREFERRED   STOCKHOLDERS'   AGREEMENT   (this
"Amendment"),  dated as of June 30, 1998, by and among the  investors  listed as
Series A Investors  on Schedule A hereto (the  "Series A Preferred  Investors"),
the  investors  listed as Series B Investors on Schedule B hereto (the "Series B
Preferred Investors"),  Radio One, Inc., a Delaware corporation (the "Company"),
Radio One Licenses,  Inc., a Delaware corporation ("ROL"), and Alfred C. Liggins
("Liggins"),  Catherine L. Hughes  ("Hughes")  and Jerry A. Moore III  ("Moore")
(Liggins,  Hughes  and Moore are  hereinafter  collectively  referred  to as the
"Management  Stockholders,"  and  together  with  the  Company  and  ROL  as the
"Interested Parties," and each an "Interested Party").

     WHEREAS,  the  Series  A  Preferred  Investors,   the  Series  B  Preferred
Investors,  the  Company,  ROL and the  Management  Stockholders  entered into a
Preferred Stockholders' Agreement (the "Original Agreement") dated as of May 14,
1997; and

     WHEREAS, in connection with the closing of the transactions contemplated by
that certain Stock Purchase Agreement dated as of December 23, 1997 by and among
the  Shareholders  of Bell  Broadcasting  Company and the Company (the  "Detroit
Acquisition"),  as to which the Investors have previously given their consent by
letter  agreement  dated  October 8, 1997,  the  Company  desires to replace its
Amended  and  Restated  Credit  Agreement,  dated  as  of  May  19,  1997,  with
NationsBank  of Texas,  N.A.  and the several  lenders from time to time parties
thereto (the  "NationsBank  Agreement") with a Credit  Agreement,  dated of even
date  herewith,  with Credit  Suisse  First  Boston,  as Agent,  and the several
lenders from time to time parties thereto (the "CSFB Agreement"); and

     WHEREAS,  certain  approvals,  consents  and  amendments  to  the  Original
Agreement are required in order for the Company to enter into the CSFB Agreement
and to take certain  actions in connection  therewith and in connection with the
Detroit Acquisition.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   ANNUAL MEETING OF STOCKHOLDERS.  The parties hereto hereby waive compliance
     by the  Company  with the  covenant  set  forth in  Section  5.9(a)  of the
     Original  Agreement insofar as such Section requires that an annual meeting
     of the stockholders of the Company be held within 180 days of the Company's
     1997 fiscal year.

2.   FORMATION OF RADIO ONE OF DETROIT,  INC. The parties  hereto hereby consent
     pursuant to Section 6.4 of the Original Agreement to the formation of Radio
     One of Detroit, Inc., a Delaware corporation,  for the purpose of acting as
     a License  Subsidiary  (as such term is defined in the Original  Agreement)
     holding the licenses,  permits and authorizations  required for and/or used
     in the ownership and operation of the radio  stations to be acquired in the
     Detroit   Acquisition.   It  is  understood  and  agreed  that,  after  the
     consummation of the Detroit 







     Acquisition,  Radio  One of  Detroit,  Inc.  will be  wholly  owned  by the
     Company's then direct subsidiary, Bell Broadcasting Company.


3.   CSFB AGREEMENT.

     (a) The parties hereto hereby  consent to the  refinancing of the Company's
     indebtedness  under the  NationsBank  Agreement  and to the  incurrence  of
     indebtedness  in  the  maximum  amount  of  $57,500,000  on the  terms  and
     conditions  contemplated by the CSFB  Agreement,  together with any and all
     interests, fees and other charges as contemplated thereby.

     (b) The Original  Agreement  is hereby  amended to delete the legend on the
     cover page thereof in its entirety and replace it with the following:

     This  agreement is subject to a Standstill  Agreement  dated as of June 30,
     1998 among RADIO ONE, INC., the  Subsidiaries  of Radio One, Inc. from time
     to time, the Investors (as defined therein), the Senior Lenders (as defined
     therein),  Credit Suisse First Boston,  as Agent to the Senior  Lenders (as
     defined  therein) and  individually  as a Lender,  and United  States Trust
     Company of New York, as Trustee for the Senior Subordinated Noteholders (as
     defined  therein) (the "Standstill  Agreement").  By its acceptance of this
     instrument/agreement,   the  holder  hereof  agrees  to  be  bound  by  the
     provisions  of the  Standstill  Agreement  to the  same  extent  that  each
     Investor is bound. In the event of any  inconsistency  between the terms of
     this  instrument/agreement  and the terms of the Standstill  Agreement,  as
     amended,  the  terms  of  the  Standstill  Agreement  shall  govern  and be
     controlling.

     (c) The  Original  Agreement  is hereby  amended to delete  Section  6.1(b)
     thereof in its entirety and replace it with the following:

     "(b)  Indebtedness  in a  principal  amount  not in excess  of  $30,000,000
     outstanding  under the Credit  Agreement  dated as of June 30,  1998 by and
     among the Company,  Credit Suisse First Boston,  as Agent,  and the several
     lenders from time to time party thereto (the "CSFB Loan Agreement") and any
     refinancing  of the  Indebtedness  under the CSFB Loan  Agreement  on terms
     substantially  similar or more  favorable  to the Company than the terms of
     the CSFB  Loan  Agreement,  provided  that such  refinancing  shall not (i)
     increase  the interest  rates to a rate greater than the rate  provided for
     under the terms of the CSFB Loan Agreement, (ii) materially change the rate
     of amortization  of the CSFB Loan  Agreement,  (iii) extend the maturity of
     the CSFB Debt beyond its current  maturity or (iv)  increase the  principal
     amount of the CSFB Debt in an  amount in excess of  $57,500,000;  provided,
     that the Borrower is not otherwise in violation of this clause (6)."

     (d) Section 6.5 of the Original  Agreement is hereby amended to delete from
     the fourth line  thereof  the phrase  "the  Senior  Lender" and add in lieu
     thereof the phrase "CSFB."

     (e) The Original  Agreement is hereby amended to delete Section 6.9 thereof
     in its entirety and replace it with the following:

     "6.9  Restrictions on Other  Agreements.  The Company will not, and it will
     not permit any Subsidiary to, enter into any agreement with any party which
     would  restrict  payments due to the  Investors in respect of the Preferred
     Shares other than to the extent such payments are 


                                       2





     specifically restricted by the provisions of the Standstill Agreements, the
     Indenture and the CSFB Loan Agreement."

     (f) Section 7 of the Original Agreement is hereby amended as follows:

          (i)  to delete from the sixteenth  (16th) line of the first  paragraph
               thereof  the  phrase  "Senior  Loan  Agreement"  and  add in lieu
               thereof the phrase "CSFB Loan Agreement;" and

          (ii) to delete from the seventeenth (17th) line of the first paragraph
               thereof the words "the Senior Lender" and add in lieu thereof the
               word "CSFB."

     (g) The last full  paragraph  of Section 8.1 of the  Original  Agreement is
     hereby amended as follows:

          (i)  to delete from the fourth (4th) line  thereof the phrase  "Senior
               Lender" and add in lieu thereof the phrase "CSFB;" and

          (ii) to delete from the fourth (4th) line  thereof the phrase  "Senior
               Loan  Agreement"  and add in lieu  thereof the phrase  "CSFB Loan
               Agreement."

     (h) Section 9 of the Original  Agreement  is hereby  amended to delete from
     the second (2nd) line thereof the phrase  "Loan  Document"  and add in lieu
     thereof the phrase "CSFB Loan Document."

     (i) Section 12.1 of the Original Agreement is hereby amended to delete from
     the  twenty-eighth  (28th) line thereof the phrase "the Senior  Lender" and
     add in lieu thereof the phrase "CSFB."

4.   DEFINITIONS.

     (a) The following  definitions shall be added to Section 11 of the Original
     Agreement:

          (i)  "CSFB" means Credit Suisse First Boston,  and its  successors and
               assigns as Agent under the CSFB Loan Agreement.

          (ii) "CSFB Debt" means up to $57,500,000 aggregate principal amount of
               indebtedness together with interest thereon and all other amounts
               due and payable  under the CSFB Loan  Agreement and the CSFB Loan
               Documents.

          (iii)"CSFB  Loan  Documents"  has the  meaning  given  the term  "Loan
               Documents" in the CSFB Loan Agreement.


                                       3





          (iv) "Standstill  Agreement" means the Standstill Agreement,  dated as
               of June 30, 1998, by and among the Company,  the  subsidiaries of
               the Company from time to time party  thereto,  the  Investors and
               Management  Stockholders named therein,  CSFB and the Trustee, as
               amended  or  modified  from time to time in  accordance  with the
               terms thereof.

     (b) The  definition  of "Senior  Debt" in the Original  Agreement  shall be
     deleted in its entirety and replaced with the following:

     "Senior Debt" means the $57,500,000  aggregate  principal  amount available
     under the CSFB  Agreement,  together  with  interest  thereon and all other
     amounts  due  and  payable  thereunder,   and  renewals,   extensions,  and
     refinancings  thereof,  in  accordance  with the  terms  hereof  and of the
     Standstill Agreement.

5.   CHANGE OF NOTICE ADDRESS.  The address for the Company and ROL set forth in
     Section  12.6 of the Original  Agreement is hereby  deleted and replaced in
     its entirety with the following:

         Radio One, Inc
         5900 Princess Garden Parkway
         8th Floor
         Lanham Maryland 20706
         Attention: Alfred C. Liggins

6.   MISCELLANEOUS.

     (a) THIS AGREEMENT  SHALL BE DEEMED TO BE A CONTRACT MADE UNDER,  AND SHALL
     BE  CONSTRUED  IN  ACCORDANCE   WITH,  THE  LAWS  OF  THE  COMMONWEALTH  OF
     MASSACHUSETTS.  EACH OF THE INVESTORS  AND THE  INTERESTED  PARTIES  HEREBY
     REPRESENTS,  WARRANTS AND AGREES THAT THE NEGOTIATION OF THIS AGREEMENT HAS
     TAKEN PLACE IN THE  COMMONWEALTH OF  MASSACHUSETTS.  EACH OF THE INTERESTED
     PARTIES HEREBY  ACKNOWLEDGES THAT IT HAS CAREFULLY REVIEWED AND UNDERSTANDS
     THE TERMS OF THIS  AGREEMENT,  HAS  OBTAINED AND  CONSIDERED  THE ADVICE OF
     COUNSEL  WITH  RESPECT  TO SUCH TERMS AND HAS HAD AN  OPPORTUNITY  TO FULLY
     NEGOTIATE SUCH TERMS.

     (b) This  Amendment  may be  executed  by the  parties  hereto in  separate
     counterparts,  each of which when so  executed  and  delivered  shall be an
     original,  but all such counterparts shall together  constitute one and the
     same instrument. Each counterpart may consist of a number of copies of this
     Amendment,  each of which may be  signed  by less  than all of the  parties
     hereto,  but  together  all such  copies are  signed by all of the  parties
     hereto.

     (c) This Amendment amends the Original  Agreement and wherever reference is
     made in the Original Agreement to "the Agreement" or "this Agreement," such
     reference  shall refer to the  Original  Agreement as amended  hereby.  The
     terms of this  Amendment  shall  control


                                       4





     any conflict between the Original Agreement and this Amendment.  Otherwise,
     all other terms and  conditions of the Original  Agreement  shall remain in
     full force and effect.

            [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK]







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                                   SCHEDULE A

Syncom Capital Corporation

Alliance Enterprise Corporation

Opportunity Capital Corporation

Capital Dimensions Venture Fund, Inc.

TSG Ventures L.P.

Fulcrum Venture Capital Corporation

Alfred C. Liggins
(successor-in-interest to
Greater Philadelphia Venture Capital Corporation, Inc.)







                                   SCHEDULE B

Alta Subordinated Debt Partners III, L.P.

BancBoston Investments Inc.

Grant M. Wilson






     IN WITNESS  WHEREOF,  the undersigned have executed this First Amendment to
Preferred  Stockholders' Agreement as a sealed instrument as of the day and year
first above written.

                                   COMPANY:

                                   RADIO ONE, INC.

                                   By:
                                      ------------------------------------------
                                      Name:  Alfred C. Liggins
                                      Title: President

                                   SUBSIDIARY:

                                   RADIO ONE LICENSES, INC.

                                   By:
                                      ------------------------------------------
                                      Name:  Alfred C. Liggins
                                      Title: President



    [Signature Page to First Amendment to Preferred Stockholders' Agreement]






                                   SERIES B PREFERRED INVESTORS:

                                   ALTA SUBORDINATED DEBT
                                     PARTNERS III, L.P.

                                   By:    Alta Subordinated Debt
                                          Management III, L.P., its
                                          General Partner

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                                   BANCBOSTON INVESTMENTS INC.

                                   By:
                                      ------------------------------------------
                                      Name:  Lars A. Swanson
                                      Title:  Vice President


                                      ------------------------------------------
                                      Grant M. Wilson, individually



    [Signature Page to First Amendment to Preferred Stockholders' Agreement]






                                   SERIES A PREFERRED INVESTORS:

                                   SYNCOM CAPITAL CORPORATION

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                                   ALLIANCE ENTERPRISE CORPORATION

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                                   OPPORTUNITY CAPITAL CORPORATION

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                                   CAPITAL DIMENSIONS VENTURE
                                   FUND, INC.

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:

                                   TSG VENTURES L.P.
                                   as successor-in-interest to TSG Ventures Inc.

                                   TSGVI Associates, Inc.

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:



    [Signature Page to First Amendment to Preferred Stockholders' Agreement]






                                   FULCRUM VENTURE CAPITAL
                                   CORPORATION

                                   By:
                                      ------------------------------------------
                                      Name:
                                      Title:


                                   ---------------------------------------------
                                   Alfred  C.  Liggins,  individually,  as
                                   successor-in-interest     to    Greater
                                   Philadelphia       Venture      Capital
                                   Corporation, Inc.






    [Signature Page to First Amendment to Preferred Stockholders' Agreement]






                                   MANAGEMENT STOCKHOLDERS:


                                   ---------------------------------------------
                                   Alfred C. Liggins, individually


                                   ---------------------------------------------
                                   Catherine L. Hughes, individually


                                   ---------------------------------------------
                                   Jerry A. Moore III, individually





    [Signature Page to First Amendment to Preferred Stockholders' Agreement]