- 1 U2
- 2 Ummon
- 3 Unkle
- 4 Unknown Brain
- 5 U.D.O.
- 6 UGK
- 7 US5
- 8 UB40
- 9 United States Marine Band
- 10 Union J
- 11 Us3
- 12 Urban Cone
- 13 Unheilig
- 14 unwritten law
- 15 Us The Duo
- 16 Udo
- 17 Until June
- 18 Underoath
- 19 Urbanize
- 20 Utah Saints
- 21 Underworld
- 22 Uakti
- 23 UFO
- 24 Ultrabeat
- 25 United Nations
- 26 unity
- 27 unknown mortal orchestra
- 28 USS
- 29 UUVVWWZ
- 30 universe