- Ola
- OST Fast and the Furious 6-7
- Of Course
- Oleynik
- Olisha
- On-line
- Opium Project
- OPIUM Project feat. Сергей Жуков
- Ott Lepland
- Onelight
- Of Monsters and Men
- Oksi
- Olly Murs
- OST Красивая Жизнь
- Open Kids
- OMI Feat. Felix Jaehn
- One Way System
- Oscar Peterson
- Orrin Tucker
- One
- Of Mice & Men
- Offer Nissim
- Old McDonald
- oliver cheatham
- OneTwo
- Osborne Ozzy
- Oscar Benton
- Oscar Isaac
- OST «Рапунцель: Запутанная история»
- OST Мулан
- Other Lives
- Ottawan
- Ozan
- Ola Svensson
- Oleta Adams
- Oliver James
- Omnia
- One Block Radius
- One Two
- onision
- Only The Strong
- Opus III
- Orange Caramel
- Original 3
- Orthodox Serbian Choir
- OST Pumpkin. Emiliana Torrini
- Otherwise
- OST Fallout 3 - Danny Kaye with The Andrews Sisters
- O. Torvald
- O.A.R.