- Olivia Dean
- On.U
- Orlando Collado
- One Call
- One lady Owner
- 欧晓敏
- Original Piano Trio
- Oh Laura
- Orchestra Marrabenta Star De Mocambique
- Overstep
- Orison
- Ove
- 欧丽萍
- Oceanlee
- onlyevva
- Obie Trice
- Orangenoise Shortcut
- ODIE
- Opsvik & Jennings
- One Piano
- Osmanjan Ayup
- One Block Radius
- Opaz
- One of the Loudest Tragedies Ever Heard...
- Ocarina
- Off The International Radar
- Orphan Allies
- Orvonton 7 Universe
- One 4 One
- Old Gods Of Asgard
- OG Three
- Oswego
- Obolus
- Outlanders
- Omaya
- Oriental Homeward
- Oscar Noriega
- Ollie Wride
- Oureboros
- Omega Centauri
- OTOR
- Oskay & O'Domhnail
- One Eighty
- Orangeburg Massacre
- Olivier Longre
- Of Methodist
- Oran
- Opaque
- Opps
- Outer Minds
- One True Voice
- O Positive
- 欧阳羽臣
- Orange Colored Sky
- O-Town
- Oliver Daldry
- Omega 3
- Outrun the Gun
- One Umbrella
- Orchestre National de l'Opéra de Monte-Carlo
- Owen Ovadoz
- Ondrej Lenard
- Oshan
- Odub
- Oskar Benas
- Old Dominion
- Orjan Nilsen
- ovg!
- Oakcee
- Olivia Garcia
- Octillian
- O★Z
- Orchestra dell'Accademia Nazionale di Santa Cecilia
- Oxylice
- Ollie
- OneofUs
- Oscar Zia
- Original Cast Wien
- Omah Lay
- Octaves
- Oslo Philharmonic Orchestra
- Once in a Million
- OWEN欧阳子文
- Olli Dittrich
- OHZU
- 欧阳艺
- On Dout Kout Chenn
- Origin Of Species
- OneCandy
- Overnight Lows
