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