UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934
(Amendment No. )*

RADIO ONE, INC.
(Name of Issuer)

Class A Common Stock, par value $.001 per share
(Title of Class of Securities)

75040P108
(CUSIP Number)

April 29, 2005
(Date of Event which Requires Filing
of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[  ] Rule 13d-1(b)
[X] Rule 13d-1(c)
[  ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Continued on following pages
Page 1 of 10 Pages
Exhibit Index: Page 9



SCHEDULE 13G
CUSIP No. 75040P108 Page 2 of 10 Pages


1 Names of Reporting Persons
I.R.S. Identification Nos. of above persons (entities only)

SAGAMORE HILL CAPITAL MANAGEMENT L.P.

2 Check the Appropriate Box If a Member of a Group (See Instructions)

a.     [   ]
b.     [X]

3 SEC Use Only

4 Citizenship or Place of Organization

DELAWARE

Number of
  Shares
Beneficially
  Owned By
    Each
Reporting
    Person
    With
5
    

6
    

7
    

8

    
Sole Voting Power
         1,060,000

Shared Voting Power
         0

Sole Dispositive Power
         1,060,000

Shared Dispositive Power
         0

9 Aggregate Amount Beneficially Owned by Each Reporting Person

1,060,000

10 Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)

[   ]

11 Percent of Class Represented By Amount in Row (9)

5.02%

12 Type of Reporting Person (See Instructions)

PN



SCHEDULE 13G
CUSIP No. 75040P108 Page 3 of 10 Pages


1 Names of Reporting Persons
I.R.S. Identification Nos. of above persons (entities only)

SAGAMORE HILL MANAGERS LLC

2 Check the Appropriate Box If a Member of a Group (See Instructions)

a.     [   ]
b.     [X]

3 SEC Use Only

4 Citizenship or Place of Organization

DELAWARE

Number of
  Shares
Beneficially
  Owned By
    Each
Reporting
    Person
    With
5
    

6
    

7
    

8

    
Sole Voting Power
         1,060,000

Shared Voting Power
         0

Sole Dispositive Power
         1,060,000

Shared Dispositive Power
         0

9 Aggregate Amount Beneficially Owned by Each Reporting Person

1,060,000

10 Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)

[   ]

11 Percent of Class Represented By Amount in Row (9)

5.02%

12 Type of Reporting Person (See Instructions)

OO



SCHEDULE 13G
CUSIP No. 75040P108 Page 4 of 10 Pages


1 Names of Reporting Persons
I.R.S. Identification Nos. of above persons (entities only)

STEVEN H. BLOOM

2 Check the Appropriate Box If a Member of a Group (See Instructions)

a.     [   ]
b.     [X]

3 SEC Use Only

4 Citizenship or Place of Organization

UNITED STATES

Number of
  Shares
Beneficially
  Owned By
    Each
Reporting
    Person
    With
5
    

6
    

7
    

8

    
Sole Voting Power
         1,060,000

Shared Voting Power
         0

Sole Dispositive Power
         1,060,000

Shared Dispositive Power
         0

9 Aggregate Amount Beneficially Owned by Each Reporting Person

1,060,000

10 Check Box If the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)

[   ]

11 Percent of Class Represented By Amount in Row (9)

5.02%

12 Type of Reporting Person (See Instructions)

IN; HC



Page 5 of 10 Pages

Item 1(a) Name of Issuer:

                          Radio One, Inc. (the “Issuer”)

Item 1(b) Address of the Issuer’s Principal Executive Offices:

                          5900 Princess Garden Parkway, 7th Floor, Lanham, Maryland 20706

Item 2(a) Name of Person Filing:

                          The Statement is filed on behalf of each of the following persons (collectively, the “Reporting Persons”):

i)        Sagamore Hill Capital Management L.P. (“Sagamore Hill Capital Management”);

ii)       Sagamore Hill Managers LLC (“Sagamore Managers”); and

iii)      Steven H. Bloom (“Mr. Steven Bloom”).

                          This Statement relates to securities held for the account of the Sagamore Hill Hub Fund Ltd., a Cayman Islands corporation (the “Hub Fund”). Pursuant to a portfolio management agreement, Sagamore Hill Capital Management serves as investment manager of the Hub Fund. In such capacity, Sagamore Hill Capital Management may be deemed to be the beneficial owner of securities held for the account of the Hub Fund. The general partner of Sagamore Hill Capital Management is Sagamore Managers. In such capacity, Sagamore Hill Managers may be deemed to be the beneficial owner of securities held for the account of the Hub Fund. Mr. Steven Bloom is the sole member of Sagamore Managers. In such capacity, Mr. Steven Bloom may be deemed to be the beneficial owner of securities held for the account of the Hub Fund.

Item 2(b) Address of Principal Business Office or, if None, Residence:

                          The address of the principal business office of each of the Reporting Persons is 10 Glenville Street, 3rd Floor, Greenwich, CT 06831.

Item 2(c) Citizenship:

1)        Sagamore Hill Capital Management is a Delaware limited partnership;

2)        Sagamore Managers is a Delaware limited liability company; and

2)        Mr. Steven Bloom is a citizen of the United States.

Item 2(d) Title of Class of Securities:

                          Class A Common Stock, par value $.001 per share (the “Shares”).

Item 2(e) CUSIP Number:

                          75040P108



Page 6 of 10 Pages

Item 3. If this statement is filed pursuant to Rule 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

                          This Item 3 is not applicable.

Item 4. Ownership:

Item 4(a) Amount Beneficially Owned:

                          According to the Issuer’s most recent proxy statement filed with the Securities and Exchange Commission, the Issuer had 21,111,249 Shares outstanding as of April 15, 2005.

                          As of the date hereof, each of Sagamore Hill Capital Management, Sagamore Managers and Mr. Steven Bloom may be deemed to be the beneficial owner of 1,060,000 Shares.

Item 4(b) Percent of Class:

                          The number of Shares of which each of Sagamore Hill Capital Management, Sagamore Managers and Mr. Steven Bloom may be deemed to be the beneficial owner as of the date hereof constitutes approximately 5.02% of the total number of Shares outstanding.

Item 4(c) Number of shares as to which such person has:

Sagamore Hill Capital Management
(i)        Sole power to vote or direct the vote: 1,060,000
(ii)       Shared power to vote or to direct the vote 0
(iii)      Sole power to dispose or to direct the disposition of 1,060,000
(iv)      Shared power to dispose or to direct the disposition of 0

Sagamore Managers
(i)        Sole power to vote or direct the vote: 1,060,000
(ii)       Shared power to vote or to direct the vote 0
(iii)      Sole power to dispose or to direct the disposition of 1,060,000
(iv)      Shared power to dispose or to direct the disposition of 0



Page 7 of 10 Pages


Mr. Steven Bloom
(i)        Sole power to vote or direct the vote: 1,060,000
(ii)       Shared power to vote or to direct the vote 0
(iii)      Sole power to dispose or to direct the disposition of 1,060,000
(iv)      Shared power to dispose or to direct the disposition of 0

Item 5. Ownership of Five Percent or Less of a Class:

                          If this Statement is being filed to report the fact that as of the date hereof the Reporting Persons have ceased to be the beneficial owners of more than five percent of the class of securities, check the following [   ].

Item 6. Ownership of More than Five Percent on Behalf of Another Person:

                          The shareholders of the Hub Fund have the right to participate in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of the Hub Fund in accordance with their ownership interests in the Hub Fund.

Item 7. Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person:

                          This Item 7 is not applicable.

Item 8. Identification and Classification of Members of the Group:

                          This Item 8 is not applicable.

Item 9. Notice of Dissolution of Group:

                          This Item 9 is not applicable.

Item 10. Certification:

                          By signing below each of the Reporting Persons certifies that, to the best of such person’s knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the Issuer of such securities and were not acquired and are not held in connection with or as a participant in any transaction having such purpose or effect.



Page 8 of 10 Pages

SIGNATURES

        After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this statement is true, complete and correct.

Date:     May 10, 2005 SAGAMORE HILL CAPITAL MANAGEMENT L.P.

By: Sagamore Hill Managers LLC,
       Its General Partner


By: /s/ Steven H. Bloom      
Name:   Steven H. Bloom
Title:     Manager


Date:     May 10, 2005 SAGAMORE HILL MANAGERS LLC

By: /s/ Steven H. Bloom      
Name:   Steven H. Bloom
Title:     Manager


Date:     May 10, 2005 STEVEN H. BLOOM

/s/ Steven H. Bloom      



Page 9 of 10 Pages


EXHIBIT INDEX

Page No.
A. Joint Filing Agreement, dated as of May 10, 2005, by and among Sagamore Hill Capital Management L.P., Sagamore Hill Managers LLC and Mr. Steven H. Bloom…………………………………………………………… 10




Page 10 of 10 Pages


EXHIBIT A

JOINT FILING AGREEMENT

        The undersigned hereby agree that this Initial Statement on Schedule 13G with respect to the common stock of Radio One, Inc., dated as of May 10, 2005, is, and any amendments thereto (including amendments on Schedule 13D) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934.

Date:     May 10, 2005 SAGAMORE HILL CAPITAL MANAGEMENT L.P.

By: Sagamore Hill Managers LLC,
       Its General Partner


By: /s/ Steven H. Bloom      
Name:   Steven H. Bloom
Title:     Manager


Date:     May 10, 2005 SAGAMORE HILL MANAGERS LLC

By: /s/ Steven H. Bloom      
Name:   Steven H. Bloom
Title:     Manager


Date:     May 10, 2005 STEVEN H. BLOOM

/s/ Steven H. Bloom