- 1 Olly Murs
- 2 Ozzy Osbourne
- 3 Offset
- 4 Odetari
- 5 Oliver Tree
- 6 OMFG
- 7 Ozielzinho
- 8 Oliver Scheffner
- 9 Omar Akram
- 10 Oscar Peterson
- 11 Ouse
- 12 Ogryzek
- 13 Omi
- 14 OsamaSon
- 15 Original Motion Picture Soundtrack
- 16 Olly James
- 17 Overwerk
- 18 Offer Nissim
- 19 OmenXIII
- 20 OXXXYMIRON
- 21 Oxlade
- 22 OSHI
- 23 Orville Peck
- 24 Olly Alexander
- 25 Oakcee
- 26 Otis Redding
- 27 Oddeeo
- 28 Ondrej Vrabec
- 29 Outertone
- 30 Oscar Yuan