50 Celebrities Who Aren't Who You Think They Are

Albert Brooks

Alison Brie

Angelina Jolie

Audrey Hepburn

Ben Kingsley

Blake Lively

Bruce Lee

Carmen Electra

Cary Grant

Charlie Sheen

Christopher Walken

Demi Moore

Diane Keaton

Dita Von Teese

Eric Bana

An Evening With Gene Wilder

Helen Mirren

Jamie Foxx

Jodie Foster

John Wayne

Judy Garland

Julianne Moore

Julie Andrews

Kevin James

Kevin Spacey

Larry King

Louis C.K.

Marilyn Monroe

Michael Caine

Michael Keaton

Mila Kunis

Natalie Portman

Natasha Lyonne

NeNe Leakes

Nicolas Cage

Olivia Wilde

Portia de Rossi

Queen Latifah

Rooney Mara

Sasha Grey

Shane West

Sigourney Weaver

Spike Jonze

Spike Lee

Tim Allen

Tom Cruise

Vin Diesel

Whoopi Goldberg

Winona Ryder

Woody Allen

The Oscars confused the hell out of everyone last Sunday when they announced that Lonnie Lynn and John Stephens won the award for Best Original Song. It turns out, those are the IRL names of "Glory" writers and performers, Common and John Legend. But pop stars aren't the only ones who use stage names.

Here are the real names of 50 other celebrities, from actors to TV personalities. While some simply shorten their birth names, others take on a whole new identity entirely.

Check out what we learned at the Oscars, in addition to the real names of Common and John Legend.

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[Photo Credit: Getty Images]