▲The 'Game of Thrones' actor was named Christopher Catesby Harington, and he himself didn't know until he was 11!!

▲The Duchess of Sussex was born Rachel Meghan Markle.

▲Who's Henry, you might ask? Well Rachel's husband also has a different official name. Meet Prince Henry Charles Albert David.

▲The model's real name is Jelena Noura Hadid.

▲Milena Markovna Kunis moved from Ukraine to the US as a child.

▲The 'The Amazing Spider-Man' actress is really Emily Jean Stone. Her natural hair color is blonde.

▲The Hollywood A-lister is really named William Bradley Pitt.

▲His parents know him as Christopher Ashton Kutcher.

▲Thomas Jacob Black just wasn't as catchy.

▲The 'Pretty Little Liars' actress is named Karen Lucille Hale.

▲The self-declared legend is actually named John Roger Stephens.

▲Katheryn Elizabeth Hudson reportedly changed her name to avoid confusion with Kate Hudson.

▲The award-winning actress is named Laura Jeanne Reese Witherspoon.

▲The Kiwi singer's real name is Ella Marija Lani Yelich-O'Connor.

▲Destiny Hope Cyrus was nicknamed "Smiley" as a child and later changed her name to Miley Ray Cyrus.

▲The Israeli-born actress was named Neta-Lee Hershlag.

▲The singer was given the name Peter Gene Hernandez at birth.

▲The performer is named Stefani Joanne Angelina Germanotta.

▲The Scottish DJ is really named Adam Richard Wiles.

▲Robyn Rihanna Fenty uses her middle name professionally.

▲The Toronto-born rapper is named Aubrey Drake Graham.

▲The singer's given name is Elizabeth Woolridge Grant.

▲Are you shocked that his real name isn't Snoop Dogg? The rapper was born Calvin Cordozar Broadus Jr.

▲The actor started out as Eric Marlon Bishop.

▲Before he was Hova, he was Shawn Corey Carter.

▲Elizabeth Stamatina Fey went for a shorter version professionally.

▲The writer, actress, and comedian is actually called Vera Mindy Chokalingam.

▲Caryn Elaine Johnson has said that she took her stage name from a whoopee cushion.

▲The acclaimed British actress was named Helen Lydia Mironoff but her father changed the family name when she was a child.

▲Alicia Augello Cook reportedly said of her name change, "It's like the piano keys. And it can open so many doors."

▲Moore was born Demi Gene Harmon before becoming Demi Gene Guynes when her mother remarried. She took her stage name from her first husband and kept it through two more marriages.

▲Christopher Edwin Breaux has been performing under the name Frank Ocean since 2005.

▲Julie Anne Smith told the New York Times that she had to change her name when she registered with Equity. "There was already a Julie Smith, a Julie Anne Smith, there was everything. My father's middle name is Moore; my mother's name is Anne. So I just slammed the Anne onto the Julie. That way, I could use both of their names and not hurt anyone's feelings. But it's horrible to change your name. I'd been Julie Smith my whole life, and I didn't want to change it."

▲Olivia Cockburn preferred to name herself after Oscar Wilde.

▲David Robert Jones changed his name to avoid confusion with Davy Jones of The Monkees.

▲Norma Jeane Mortenson also went by Norma Jeane Baker before she was reinvented as Marilyn Monroe.

▲Margaret Mary Emily Anne Hyra took her grandmother's last name when she joined the Screen Actors Guild.

▲Louis A. Székely chose a stage name that was easier for American audiences.

▲Mark Sinclair chose a more interesting stage name.

▲Nicolas Kim Coppola didn't want to be defined by his famous family name.

▲Phoenix was born Joaquin Rafael Bottom. His parents changed the family's last name after leaving the Children of God cult. As a child, he went by the name Leaf.

▲Carlos Irwin Estévez anglicized has a real name as long as his father, Ramón Gerard Antonio Estévez, who is better known as Martin Sheen.

▲Allan Stewart Konigsberg started going by his nom de plume as a teenager.

▲The actress' name was actually Audrey Kathleen Ruston.

▲Courtney Michelle Harrison first used her stage name to conceal her identity while working as a stripper.

▲Winona Laura Horowitz was named after the city she was born in, Winona, Minnesota.

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The Queen frontman was born Farrokh Bulsara.

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The 'Friends' actress has Greek roots and her full name is Jennifer Joanna Aniston, but only because the family name was changed from Anastassakis.

▲Onika Tanya Maraj told the Guardian that her name change wasn't really her choice. "One of the first production deals I signed, the guy wanted my name to be Minaj and I fought him tooth and nail. But he convinced me. I've always hated it."

▲Belcalis Marlenis Almanzar took her stage name from Bacardi.

▲Nikolina Konstantinova Dobreva changed her name after her family moved from Bulgaria to Canada when she was a child.

▲The Australian singer's real name is Amethyst Amelia Kelly.

▲Her real name is Angela Renée White.

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Reginald Kenneth Dwight legally changed his name to Elton Hercules John in 1972.

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Jason Sudeikis might be better known as 'Ted Lasso' these days, but it turns out Jason isn't even his real first name! The actor confirmed that he was born Daniel Jason Sudeikis, but his father's name is also Daniel Joseph Sudeikis, so that made things a little confusing in the house.

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The U2 singer was born Paul David Hewson.

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Sir Richard Starkey MBE played the drums in The Beatles.

▲For over three decades, audiences knew the 'Westworld' actress as Thandie Newton, but she revealed that her real name is spelled Thandiwe Newton. It's pronounced "tan-DEE-way" and it means “beloved," she told British Vogue. Newton explained that her name was misspelled in the credits for her first film, 1991's 'Flirting,' and the spelling stuck.

▲The actor known for movies such as 'Batman' (1989) and 'Beetlejuice' (1988) was born Michael John Douglas. He later adopted Keaton as a stage name.

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Given names are just that: given. And they’re typically given by people who don’t realize their child may one day want their name to roll off the tongue, Hollywood-style. That’s why stage names are so common.

Do you know the real names of your favorite stars or just their stage names? Many celebs have been hiding behind them for years. Did you know that Brad Pitt’s real name is William? Or that Jennifer Aniston is actually Joanna Aniston? Click on for some more shocking name reveals.