O'Connor, Mark
O' Jays
O-Town
O.A.R.
Oak Ridge Boys
Ocean, Billy
Offspring
Ohio Express
Ohio Players
Ohio State Party Music
Ol Dirty Bastard
OMC
112
Onyx
Orbison, Roy
Orleans
Orrico, Stacie
Osborn Brothers
Osborne, Joan
Osbourne, Kelly
Osbourne, Ozzy
Osburne, Jeffrey
Otis, Johnny
Otto, James
Outfield
Outkast
Owen, Jake
