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