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