Exhibit 10.7(a)

                             SECOND AMENDMENT TO THE
                            WARRANTHOLDERS' AGREEMENT

                  This Second Amendment to the  Warrantholders'  Agreement (this
"Amendment")  is made as of this 3rd day of May,  1999,  by and among Radio One,
Inc., a Delaware  corporation  (the "Company"),  Catherine L. Hughes,  Alfred C.
Liggins and Jerry A. Moore III  (collectively,  the "Management  Stockholders"),
the  investors  listed on the  signature  pages  hereto  as  Series B  Preferred
Investors (the "Series B Preferred Investors"),  and the investors listed on the
signature pages hereto as Series A Preferred  Investors (the "Series A Preferred
Investors")  (the  Series B  Preferred  Investors  and the  Series  A  Preferred
Investors  being  collectively  referred to herein as the  "Investors"  and each
individually as an "Investor," and the Investors and the Management Stockholders
being  collectively  referred  to  herein  as  the  "Securityholders"  and  each
individually as a "Securityholder").

                               W I T N E S S E T H

         WHEREAS,  the  Company,  Radio  One  Licenses,   Inc.,  the  Management
Stockholders and the Investors are parties to a Warrantholders' Agreement, dated
as of June 6, 1995,  as amended by the First  Amendment  to the  Warrantholders'
Agreement  dated as of May 19,  1997,  and the  Agreement  and  Plan of  Warrant
Recapitalization   dated  as  of  February   25,   1999  (as  so  amended,   the
"Warrantholders' Agreement");

         WHEREAS,  the Company,  the Management  Stockholders  and the Investors
wish to further amend the  Warrantholders'  Agreement in order to facilitate the
public offering and sale by the Company of shares of the Company's  Common Stock
contemplated by the Form S-1 Registration  Statement filed on March 12, 1999, as
subsequently amended (the "Common Stock Registration Statement"), and the public
offering and sale by the Company of shares of the  Company's  Senior  Cumulative
Exchangeable Preferred Stock contemplated by the Form S-1 Registration Statement
filed  on  March  19,  1999,  as  subsequently  amended  (the  "Preferred  Stock
Registration Statement").

         NOW,  THEREFORE,  in  consideration  of the  foregoing  and the  mutual
covenants  and  agreements   herein   contained  and  other  good  and  valuable
consideration,  the receipt and  adequacy of which is hereby  acknowledged,  the
parties hereto agree to amend the Warrantholders' Agreement as follows:

         1.  Amendment  to  Section  9.12  of  the  Warrantholders'   Agreement.
Effective  as of the  Effective  Time (as defined  below),  Section  9.12 of the
Warrantholders' Agreement shall be amended by deleting the existing Section 9.12
in its entirety, and replacing it with the following:

                  "Section 9.12.  Term. This Agreement shall remain in effect so
         long as any of the Investors hold Warrants or  Registrable  Securities;
         provided,  however, that the provisions of Articles III, IV, V, VI, VII
         and  VIII  shall  terminate  upon the  closing  of a  Qualified





         Public  offering  by the  Company;  and,  provided,  further,  that the
         provisions of Articles VIII hereof  shall,  in any event,  terminate on
         the tenth anniversary of the date hereof."

         2. Effectiveness of Amendment. For purposes hereof, the term "Effective
Time" shall mean the first date on which both of the Common  Stock  Registration
Statement  and the Preferred  Stock  Registration  Statement  have been declared
effective by the Securities and Exchange Commission.

         3.  Documents  Otherwise  Unchanged.  Except as  provided  herein,  the
Warrantholders' Agreement shall remain unchanged and in full force and effect.

         4.  Counterparts.  This  Amendment  may be  executed  in any  number of
counterparts,  each of which  shall be  identical  and all of which,  when taken
together,  shall constitute one and the same instrument,  and any of the parties
hereto may execute this Amendment by signing any such counterpart.

         5. Binding  Effect.  This Amendment  shall be binding upon and inure to
the benefit of the parties hereto and any respective successors and assigns.

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         IN WITNESS WHEREOF,  the parties have executed this Second Amendment to
the Warrantholders' Agreement as of the date first above written.

                                   RADIO ONE, INC.

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   ---------------------------------------------
                                                 Catherine L. Hughes

                                   ---------------------------------------------
                                                 Alfred C. Liggins, III

                                   SYNCOM CAPITAL CORPORATION

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   ALTA SUBORDINATED DEBT PARTNERS III, L.P.

                                   By:      Alta Subordinated Debt Management
                                            Partners III, L.P.

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   BANCBOSTON INVESTMENTS INC.

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

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                                   ALLIANCE ENTERPRISE CORPORATION

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   OPPORTUNITY CAPITAL CORPORATION

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   MEDALLION CAPITAL, INC.

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   TSG VENTURES, L.P.

                                   By: TSGVI Associates, Inc.
                                   Its: General Partner

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------

                                   FULCRUM VENTURE CAPITAL CORPORATION

                                   By:
                                      ------------------------------------------
                                   Its:
                                       -----------------------------------------


                                   ---------------------------------------------
                                                    Grant M. Wilson

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                                   ---------------------------------------------
                                                    Jerry A. Moore III




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