Otis Clay
blues, oldies, rhythm and blues, soul, southern soul
Otis Gibbs
americana, bluegrass, folk
Otis Redding
blues, oldies, rhythm and blues, soul
Otis Redding & Carla Thomas
funk, rhythm and blues, soul
Otis Rush
blues, chicago blues, electric blues
Otis Spann
blues, delta blues, piano blues
Otis Taylor
blues, rock, singer-songwriter, folk
Otros Aires
electronic, tango
OTT
ambient, chillout, dub, electronic
Otto Brandenburg
jazz, pop, rock
Otto Knows
dance, house, progressive house
Otyg
folk metal, metal, viking metal, folk
Ou Est Le Swimming Pool
electro, electronic, synthpop
Ougenweide
folk rock, folk
Ought
art punk, indie rock, post-punk
Oui Oui
chanson, french pop
Oupa
lo-fi, sadcore, folk
Our Ceasing Voice
ambient, post-rock
Our Daughter's Wedding
new wave, synthpop, technopop
Our God Weeps
dark ambient, martial industrial, neoclassical, neofolk
Our Lady Peace
alternative rock, rock
Our Last Night
emo, emocore, post-hardcore, screamo
Our Theory
dub, electronic, jazz, post-hardcore
Our Waking Hour
alternative metal, alternative rock, modern rock, rock
Ours
alternative rock, indie rock, rock
Out Of Eden
contemporary christian
Out of Focus
krautrock, progressive rock, psychedelic rock
Out Of My Hair
alternative rock, pop
Out of Office
electronic, funky house, house
Out of Order
hard trance, hardcore techno