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The surprising real names of 24 celebrities

Aly Weisman,Kirsten AcunaJun 13, 2016, 23:55 IST

Andreas Rentz/Getty

Many of Hollywood's biggest names don't go by their birth names, including Tina Fey, Mila Kunis, Demi Moore, and Katy Perry.

Celebrities change their names for various reasons.

Nicolas Cage, nephew of Francis Ford Coppola, changed his last name in order to avoid Hollywood nepotism.

Others, like Whoopi Goldberg, have a more humorous backstory.