- Unicorn Kid
- Unusual Cosmic Process
- Umami
- Ugly Kid Joe
- Unbelievable Truth
- U.N.P.O.C.
- UNISON SQUARE GARDEN
- Uncle Lucius
- Uncle Acid and the Deadbeats
- Up There: The Clouds
- Underwaters
- Usher Feat. Pitbull
- Unwed Sailor
- Una Healy
- Unequal Treaty
- Uner
- United Peace Voices
- Ume
- U-God
- unmo
- Uhuhboo Project
- UtAGe
- Underground Resistance
- Up, Bustle and Out
- U. Srinivas
- Upcdownc
- Urchin
- Urusen
- Uncle Murda
- Uncle Tupelo
- UA
- Uña Ramos
- uran okajima
- Unheilig
- Ululate
- Ultraspank
- Ugly Thrash Demon
- Urszula Dudziak
- Undadogg
- Uaral
- Uakti
- Udi Levy
- Ulrik Munther
- Uffe
- Unique
- Uncle Sam
- UNICORN
- umbrella
- Upper Room
- Unprepared Orchestra
- U.S. Royalty
- Unter Null
- Urban Knights
- UNDER17
- Unleash The Archers
- U96
- UFO[宇宙征服]
- Urbie Green
- Urbanize
- Unkown
- Ustad Amjad Ali Khan
- Ultramagnetic MC's
- Untouchable
- Under the Influence of Giants
- Unsinn
- UltraNoir
- UMC/UW
- unistyle
- US5
- UB40
- UNDER THE COUNTER
- Ursus Colossus
- Ullanda McCullough
- Unlearn
- Under This
- ULOG'Be
- Uncreation
- Ultra Vomit
- U-ji
- Ulver
- Utero Vaginal Peste
- Uyama Hiroto
- Ulhas Kashalkar
- Urban Jazz Coalition
- Ursula Rucker
- Unkle Bob
- Underwater
- U-topia
- Uth
- Union of Knives
