- Oscar Isaac
- Otis Redding (奥蒂斯·雷汀)
- OV7
- Oliver Koletzki
- Our Last Night
- Olivia Rodrigo
- 오브로젝트 (OBroject)
- Odesza
- 오키 (OKI)
- 欧翠峰
- Outkast
- オレスカバンド (Oreskaband)
- Old Dominion
- Oceans
- On June
- O' Lee (이건)
- Overwerk
- Ortella
- Ofelia K
- Orjan Nilsen (Ørjan Nilsen)
- Oscar Zia (奥斯卡·齐亚)
- One Trybal
- Oomph!
- 欧姐
- OmenXIII
- ORESAMA (オレサマ。)
- Ookay
- OK GO
- Osvaldo Supino
- Orkestrated
- OMG战队
- Orbital (卫星轨道合唱团)
- O-Town (欧城)
- Olly James
- 원 (One)
- offaiah
- Orquesta Lírica de Bellaterra
- onoken (AXSword)
- Otis McDonald
- Olly Hence
- Oicho
- Oceana
- Olivia
- on sae mi ro
- Old Crow Medicine Show
- One Two
- Olivera
- OSTER project (オスタープロジェクト)
- Oberhofer
- Otomania
- Oh No
- OKAMOTO'S
- Old 97's
- Oskar Häggström
- 오블리스 (OHBliss)
- One More Chance (원모어찬스)
- Outasight
- 欧阳晓晓
- Oorora
- Olympic Ayres
