Adamski was born Adam Tinley.
Gilbert O'Sullivan was born Raymond Edward O'Sullivan.

Adamski was born Adam Tinley.
Ric Ocasek was born Richard Otcasek.

Adamski was born Adam Tinley.
Billy Ocean was born Leslie Sebastian Charles.

Adamski was born Adam Tinley.
Nivek Ogre (Skinny Puppy) was born David Ogilvie.

Adamski was born Adam Tinley.
Tony Orlando was born Michael Anthony Orlando Cassavitis.

Adamski was born Adam Tinley.
Benjamin Orr was born Benjamin Orzechowski.

Adamski was born Adam Tinley.
Roland Orzabal (Tears For Fears) was born Roland Orzabal De La Quintana.

Adamski was born Adam Tinley.
Ozzy Osbourne was born John Michael Osbourne.

Adamski was born Adam Tinley.
Johnny Otis was born John Veliotes.