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