15 Famous People You Didn’t Know Weren’t Using Their Real Names

A great stage name can become so closely associated with a celebrity that it is easy to forget it was ever a stage name at all. After hearing the same name attached to movies, albums, interviews, and awards for decades, something like Vin Diesel or Elton John eventually sounds as ordinary as any name printed on a birth certificate. In reality, entertainers have adopted new names for all kinds of reasons, from avoiding confusion with another performer to protecting their privacy or simply creating something more memorable. Some made only a tiny adjustment, while others chose identities completely different from the ones they were born with. Here are 15 famous people you didn’t know weren’t using their real names.

Vin Diesel

The Fast & Furious star was born Mark Sinclair, making “Vin Diesel” a completely invented professional identity. He began using Vin while working as a nightclub bouncer, while Diesel came from a nickname referring to his seemingly endless energy.

Katy Perry

Katy Perry was born Katheryn Hudson and initially released music under the name Katy Hudson. She later adopted her mother’s maiden name, Perry, which also helped distinguish her from actress Kate Hudson.

Bruno Mars

Bruno Mars was born Peter Gene Hernandez, although his father nicknamed him Bruno when he was young. He later added Mars as he developed the stage identity that would follow him throughout his music career.

Whoopi Goldberg

Whoopi Goldberg’s birth name is Caryn Elaine Johnson. “Whoopi” grew out of an amusing comparison to a whoopee cushion during her early performing days, and the unusual nickname eventually became part of one of Hollywood’s most recognizable names.

Jamie Foxx

Jamie Foxx was born Eric Marlon Bishop. Early in his stand-up career, he reportedly noticed that female performers were often called to the stage first at open mics, so he began using the deliberately ambiguous name Jamie Foxx.

Emma Stone

Emma Stone was actually born Emily Jean Stone. When she registered with the Screen Actors Guild, another performer was already using Emily Stone, forcing the future Oscar winner to find a different first name.

Nicolas Cage

Nicolas Cage was born Nicolas Kim Coppola and is a member of the same famous filmmaking family as director Francis Ford Coppola. Early in his acting career, he adopted Cage in part to establish an identity separate from his family name.

Miley

Miley was born Destiny Hope Cyrus, but her childhood nickname eventually became the name the world knew her by. She legally changed her name to Miley Ray Cyrus in 2008, and in August 2026, she dropped “Cyrus” from her public branding to go simply by Miley.

Elton John

Elton John was born Reginald Kenneth Dwight. As his music career developed, he left his birth name behind and adopted the name by which generations of listeners would eventually know him.

Lana Del Rey

Lana Del Rey was born Elizabeth Woolridge Grant and performed under different names before settling on her famous persona. “Lana Del Rey” ultimately became inseparable from the cinematic image and sound she developed as an artist.

Michael Keaton

Michael Keaton’s real name creates a particularly funny Hollywood problem: he was born Michael Douglas. Because another Michael Douglas was already an established actor, he needed a different professional surname and eventually became Michael Keaton.

John Legend

John Legend was born John Roger Stephens and initially performed under his real name. The nickname “Legend” was suggested by poet J. Ivy because his sound reminded him of old-school artists, and it eventually became his professional surname.

Calvin Harris

Calvin Harris was born Adam Richard Wiles in Scotland. He adopted his much more internationally recognizable stage name early in his career, long before becoming one of the biggest producers and DJs in pop music.

Marilyn Monroe

One of Hollywood’s most famous names belonged to a woman born Norma Jeane Mortenson. She adopted Marilyn Monroe as her film career began, combining a studio-suggested first name with Monroe, a family name from her mother’s side.

Freddie Mercury

The Queen frontman was born Farrokh Bulsara and began calling himself Freddie while attending school as a child. He later adopted Mercury as Queen was taking shape, completing the name that would become synonymous with his larger-than-life stage presence.