Oasis
  October Project
  Ofenbach
 Ofra Haza
  Oleta Adams
  Oliver
 Olivia Newton
  Olivia Newton John
  Olivia Newton John e Andy Gibb
 OneRepublic
  Ons Lieflinge
  Orchestral Manoeuvres In The Dark
 Oscar Harris
  Oscar Harris e Debbie (Ria Schildmeyer)
  Otis Redding
 Otis Redding e Carla Thomas
  Otto NIlsen
  Ouriel Clark
 Ozzy Osbourne