'O' Artists List
- O—Town
- Oak Ridge Boys
- Oasis
- Obie Trice
- Obituary
- Obliveon
- OCEAN BLUE
- Ocean Colour Scene
- Offspring
- Oingo Boingo
- Ol' Dirty Bastard
- Old
- Old Man's Child
- Olive
- Oliver! Soundtrack
- Olivia Newton—John
- Omar & The Howlers
- Omen
- On Thorns I Lay
- One Minute Silence
- One Voice
- Onyx
- Oomph
- Opera Ix
- Operation Ivy
- Opeth
- Ophthalamia
- Orange Goblin
- Oratory
- Orphanage
- ORPHANED LAND
- Otis Redding
- Otyg
- Our Lady Peace
- Ours
- Outkast
- Outlandish
- Over The Rhine
- Overkill
- Oxymoron
- Ozark Mountain Daredevils
- Ozzy Osbourne