All Artists With “O”
- Oasis (Noel & Liam Gallagher)
- Ocean, Frank
- Odell, Tom
- Oerding, Johannes
- Oldfield, Mike
- Omega (Hungarian rock band)
- One Direction (English‐Irish pop boy band)
- OneRepublic
- Orbison, Roy
- Orchestral Manoeuvres in the Dark
- Orff, Carl (composer)
- Osbourne, Ozzy
- Oslo Gospel Choir
- Ott, Kerstin (German (Berlin) Singer)
- Ötzi, DJ (Austrian entertainer and schlager singer)
- Owens, Buck
- O’Connor, Sinéad (Irish singer‐songwriter)
- O’Day, Anita
- O’Sullivan, Gilbert