- 1 Olly Murs
- 2 Ozzy Osbourne
- 3 OMFG
- 4 Oliver Tree
- 5 Offset
- 6 Odetari
- 7 Omar Akram
- 8 Otto Knows
- 9 Ola
- 10 Ogryzek
- 11 Oliver Scheffner
- 12 ONR
- 13 Omar Rudberg
- 14 One True God
- 15 OMER DEEP
- 16 Omi
- 17 Oskar Schuster
- 18 Ozielzinho
- 19 OmenXIII
- 20 Orville Peck
- 21 Oliver Shanti
- 22 ok2222
- 23 Otter Berry
- 24 OSHI
- 25 Ocean Waves for Sleep
- 26 Oscar Dunbar
- 27 Offer Nissim
- 28 Omah Lay
- 29 Otto A. Totland
- 30 Omar Apollo