Dunno if this'll fly or not, but...

Easy as pie. FIrst person posts a
pseudonym or birthname of somebody
more famous by another name. Whoever
gets it right posts the next one :

Henry John Deutschendorf Jr.

John Denver

Robert Zimmerman - bonus points if you know who he honored with his name change

Bob Dylan (Dylan Thomas, though Bob has
denied that on a couple of occasions !)

Marvin Lee Aday

Meatloaf
I have 100's of these names to keep you going want a link for help? email me
Reginald Dwight

Elton John.
(No, I think I have plenty of names,
the problem, like most games, will end
up being the level of participation.)

Maurice Joseph Micklewhite

Michael Caine (Not a lot of people know that?) Catchphrase attributed to him by title of a trivia fact book
But really came from Peter Sellers on a UK Chat show
http://mysite.freeserve.com/

Harvey Lee Yeary II.

Clue:Expensive

Lee Majors (The Six Million Dollar Man, plus inflation)

John Michael Osbourne <---too easy?

Ozzy Osbourne
I nearly put that in the last entry .But like you I said to myself Too Obvious


Concetta Rosalie Ann Ingolia

Connie Stevens

William Jefferson Blythe

Bill Clinton

Paul O'Grady

Lily Savage

Elias McDaniel

Whoopi Goldberg

Steveland Morris

Stevie Wonder

Eleonora Fagan

Billie Holiday

Angelo Giuseppe Roncalli

Pope John XX111

Ras Tafari Makonnen

Haile Selassie

Leslie Lynch King, Jr.

Gerald Ford
(See? We had a "King" for President! )

Marion Michael Morrison

"The Duke" - John Wayne

Alphonse D'Abruzzo