It's common practice in Hollywood for stars to ditch the names on their birth certificates for a fresh new moniker. Read on to learn what Miley Cyrus, Frank Ocean and more were originally called.

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If some stars' names sound too good to be true, that's because, most likely, they are. 

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Cardi B took on the name Bacardi after family and friends started calling her sister Hennessy. 

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Oddly enough, Gigi Hadid got her stage name in school when the teacher would confuse her and a girl named Helena. 

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If you're looking for an explosive action-star name, how about Vin Diesel instead? 

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Before she became the Duchess of Sussex, Meghan Markle was briefly known as Rachel.  

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Miley Cyrus' bright smile is what inspired her childhood nickname, Smiley. Eventually the name was shortened to Miley and it stuck.  

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Apparently the singer looked more like a Bruno than a Peter, so one day his dad started calling him Bruno. Ever since, he has been known as Bruno Mars.

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Before the meat dresses and chart-topping music, Lady Gaga was just an everyday girl from New York. 

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Turns out Reese isn't even Reese Witherspoon's middle name. The actress chose the moniker in honor of her mother, whose maiden name is Reese. 

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Every artist has an alter ego, and Lana Del Rey just happens to be the persona of choice for the singer.  

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In 2014, Frank Ocean legally changed his name because, why not?  

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A little known fact about 30 Rock's Tina Fey is that she is actually named Elizabeth. The comedian made a not so subtle tribute to her birth name by naming her character Liz Lemon. 

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This pioneer of West Coast rap would later go on to be known as Snoop Dogg. 

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Turns out the "Royals" singer is really into learning about the aristocracy, hence the reason why she chose the name Lorde, but with a feminine 'e.' 

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Before he started shaking his bonbon for the masses, music superstar Ricky Martin went by this everyday name. 

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It's hard to believe that Iggy Azalea was born Amethyst Kelly! 

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Fans were confused when Taylor Swift thanked then-boyfriend Adam in an acceptance speech, which lead people to the discovery that Calvin Harris is simply a stage name. 

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Before she became a household name, this was what erstwhile Friend Jennifer Aniston answered to. 

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Alicia Keys didn't always have such a musical name. 

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Before he became arguably the biggest movie star in the world, Tom Cruise went by this name. 

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Back when she was born in 1980, this was how the future bigtime actress Natalie Portman greeted the world. 

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Before she became a big-time TV star and married Ellen DeGeneres, this was the name Portia de Rossi answered to. 

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Guess music superstar Elton John didn't think his original name would be a hit with audiences. 

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Check former Paris Hilton BFF Nicole Richie's birth certificate and this is the name you'll see. 

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All it took was a nickname from some high school friends, and U2 frontman Bono's famous moniker was born. 

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We agree. Carmen Electra is much more effective when it comes to selling a sexy Baywatch persona.

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True, Jamie Foxx just seems more fitting for an Oscar-winning Hollywood party guy. 

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Before she'd starred in dozens of huge Hollywood movies and married two Tinseltown A-listers, this was the name Demi Moore went by. 

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Jay-Z is definitely a more fitting name for a hip-hop impressario. 

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thank you