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