real names of celebs

hey friends do you know not all celebs are born with real show biz names
just check this

Tom Cruise Thomas Cruise Mapother IV
Demi Moore Demetria Guynes
Nicolas Cage Nicholas Kim Coppola
Penelope Cruz Penelope Cruz Sanchez
Jodie Foster Alicia Christian Foster
Sylvester Stallone Michael Sylvester Enzio Stallone
Brad Pitt William Bradley Pitt
and the list goes on ............

there are so many if you know some of them you too can drop a line here