U2 (Ireland; Indie)
UB40 (UK; Reggae)
U.D.O. (Germany; Heavy Metal)
Udo Lindenberg (Germany; Glam Rock/Art Rock/Hard Rock/New Wave/Pop Rock)
UFO (UK; Hard Rock)
Ufomammut (Italy; Psychedelic/Stoner/Doom)
Ugly Kid Joe (USA; Hard Rock)
U.K. (UK; Art Rock)
UK Subs (UK; Punk)
Ulcerate (New Zealand; Prog Death)
Uli Jon Roth (Germany; Neoclassical)
Ultimate Spinach (USA; Psychedelic)
Ultraspank (USA; Nu Metal)
Ultra-Violence (Italy; Thrash/Metalcore)
Ultravox (UK; New Wave)
Ulver (Norway; Folk Black/Electronics/Avant-Garde)
Umbra Et Imago (Germany; Darkwave/Neue Deutsche Harte)
Unanimated (Sweden; Melodic Death)
Uncle Acid & The Deadbeats (UK; Psychedelic/Stoner)
Uncle Slam (USA; Crossover)
Underoath (USA; Christian Metalcore)
Undertones (North Ireland; Punk)
Underworld (UK; Electronics)
Undisputed Truth (USA; Soul/Funk)
Unheilig (Germany; Neue Deutsche Harte)
Unholy (Finland; Doom)
Unicorn (UK; Soft Rock)
Union (USA; Hard Rock/Post Grunge)
Unit 4+2 (UK; Pop Rock)
United (Japan; Thrash/Groove Metal)
United States Of America (USA; Psychedelic)
Unitopia (Australia; Art Rock)
Univers Zero (Belgium; Avant Prog/RIO)
Unkle (UK; Trip-Hop/Indie)
Unleashed (Sweden; Death)
Unleashed Power (Denmark; Thrash)
Unleash The Archers (Canada; Power/Melodic Death)
Unrest (Germany; Heavy Metal)
Unruly Child (USA; Melodic Rock)
Unsane (USA; Noise Rock)
Unseen Terror (UK; Grindcore)
Until Death Overtakes Me (Belgium; Doom)
Urgehal (Norway; Black)
Urge Overkill (USA; Alternative/Punk/Hard Rock)
Uriah Heep (UK; Classic Rock)
Urn (Finland; Blackened Thrash)
Uz Jsme Doma (Czechoslovakia; Post Punk/Avant-Prog)