- Omar Arnaout
- Orkhan Zeynalli
- Osman Hadzic
- Olivia Villadsen
- OriginalEric
- Ogie Alcasid
- Oğuz Berkay Fidan
- O'Yaba
- Old Nick
- Owlson
- 欧阳文倩
- Orquesta Música Maravillosa
- O4.Aezz
- Original Moscow Cast Of The Phantom Of The Opera
- Oliver Rosa
- Oracle Sisters
- O.Fagerlund Project
- Olmos
- Overmono
- Olyghost
- Ondas Alfa
- Odissc
- Ose
- Orchestre National France
- Oscar Goldmen Overdrive
- Oaze
- Okapi
- Offshore Wind、Ange
- Oun P
- Oleg Maisenberg
- ONE_BAI
- Oliver Michael
- ookay、Getter
- 欧阳仙笙
- Olia Maey
- Outfit
- Out of the Crosshairs
- Oumeima El Khalil
- Obstrocamelia
- OrO
- O'Lee
- Oub
- Onpa Music
- Old pig
- Ocean Grove
- Oscar Nimoy
- Ohlayindigo
- Okeez
- Ofelia Gómez Castellanos
- One Shadow
- Oscar Rocchi
- Olderskiii
- Olof Johansson's the Jazzy Project
- Olga Solovieva
- 欧飞
- ORIG∆MI
- Olivera Markovic
- OK Jazz Band
- Once Jamison
- Otokaze、Tomomi Takamatsu
- Oviedo Filarmonía
- Ocmg
- Oleg Mazur
- Opak
- oUu
- Orchestra di Roma della RAI
- Olatunde
- OSCAR SANCHEZ
- Oiwnos
- Odagled
- 欧的陈
- O-Tee
- Oscar Vazquez Hernandez
- Old 'N' Glam
- Osiba
- Oh, Hush!
- ORF Chor
- OGTee
- OTTA
- Orlando Pops Orchestra
- OK Pirámides
- 欧阳代义
- Ozlig
- OOB
- Ourealgoat
- OVN
- Oliver Cherer
- O1ye
- Oceanic Love
- OliVerW
