The main stage name of the rapper with the birth name of Clifford Harris is "T.I". In earlier life he also had the nicknames "Rubberman" and "T.I.P" from which his stage name is abbreviated.
Rapper Kim Nam-joon's stage name is RM
Her full name is Ariana Grande-Butera. She doesn't have a stage name, so uses her own real name.
The most important quality of a good stage name is that it is easy to pronounce and remember. Under these conditions, Luke Marz would be a good stage name.
Milton Berle
The Client.
Reg Reg Askew's birth name is Reginald Askew.
Abe Lincoln
Ate Reg's birth name is Mavey Cleofas.
Reg Mombassa's birth name is Christopher O'Doherty.
Reg Sinfield's birth name is Reginald Albert Sinfield.
Reg Livermore's birth name is Reginald Dawson Livermore.
Reg Lye's birth name is Reginald Thomas Lye.
Reg Turnill's birth name is Reginald George Turnill.
Reg Bream's birth name is Reginald James Bream.
Reg Browne's birth name is Brown, Reginald Thomas.
Reg Bundy's birth name is Reginald Sutherland Bundy.