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