Orenda Fink
singer-songwriter
Organ Thieves
folk rock, hard rock, heavy metal, reggae, southern rock
Organic Audio
chillout, electronic, electronica, trip-hop
organic stereo
ambient, electronic, post-rock, folk
Organised Grime
dubstep, grime
Organissimo
jazz, jazz-funk
Organized Chaos
progressive metal, punk rock
Orgone
afrobeat, death metal, funk, soul, technical death metal
Orgy
industrial rock, metal, rock
Orianthi
pop, pop rock, rock
Óriás
alternative rock, rock
Orichalcum
goa, goa trance, psychedelic trance
Origin
brutal death metal, death metal, grindcore, technical death metal
Original Dixieland Jazz Band
dixieland, dixieland jazz, jazz
Original Mirrors
new wave, post-punk
Original Naabtal Duo
schlager, volksmusik
Original Sin
black metal, drum and bass, speed metal
Orion Rigel Dommisse
indie folk, new weird america, singer-songwriter, folk
Orion the Hunter
hard rock, rock
Orion Too
dance, eurodance, trance
Orion's Reign
metal, power metal
Orjan Nilsen
melodic trance, progressive trance, tech trance, trance, uplifting trance
Orkrist
black metal, doom metal, folk metal, melodic black metal, symphonic metal
Orla Gartland
indie pop, singer-songwriter
Orlando Johnson
disco, funk, italo disco
Orleans
classic rock, pop, rock, soft rock
Orleya
bossa nova, chillout, pop
Ornament
ambient, dark ambient, electronic, folktronica, idm
Ornatos Violeta
alternative rock, rock
Orne
doom metal, progressive rock
Ornette Coleman
avant-garde, free jazz, jazz
Orodruin
black metal, doom metal, metal
