© Getty Images/Reuters

Mariah Carey - The successful singer was once called Mirage by classmates and teachers.

© Reuters

Jennifer Lawrence - Strangely enough, Lawrence grew up with the nickname Nitro.

© Reuters

Cameron Diaz - The actress was apparently called Skeletor when she was a child, because of her skinny physique.

© Reuters

Snoop Dogg - Calvin Broadus got his nickname as a kid, since his mother thought he looked like Charlie Brown's dog, Snoopy.

© Reuters

Liam Payne - To his sisters, Liam Payne is Cheesy Head, due to an apparent love of cheese-flavored chips.

© Reuters

Keanu Reeves - Reeves was reportedly a star athlete at school, and was known as the The Wall for his exceptional goalkeeping skills in hockey.

© Reuters

Ariana Grande - With an Italian background, Grande's grandmother nicknamed the singer Bellissima, which means "beautiful."

© Reuters

Bing Crosby - Born as a Harry, Bing Crosby got his nickname from his friends, because his laugh reminded them of a skit from the 'The Bingville Bugle.'

© Public Domain

Miley Cyrus - Miley Cyrus isn't her real name, the singer was born Destiny Hope. She had the nickname of Smiley, shortened to Miley.

© Reuters

Whoopi Goldberg - Born Caryn Elain Johnson, the media personality was nicknamed after a whoopee cushion, because she apparently passed gas a lot when performing early on.

© Reuters

Chris Hemsworth - As a child, he had difficulties pronouncing his name. Christopher came out as "Kiptader," so his childhood nickname became "Kip."

© Getty Images

Tiger Woods - The golfer was originally named Eldrick, but his father nicknamed him Tiger after a friend from the military.

© Reuters

Selena Gomez - Sel was apparently the singer's name as a child, and at one point she got the nickname written on her in henna.

© Reuters

Hugh Jackman - You know him as the burly action star, but Jackman was once thin as a rake, and friends called him Sticks because of his skinny legs.

© Reuters

Iggy Azalea - The rapper has always been tall, and her grandfather even nicknamed her Stretch.

© Reuters

Daniel Radcliffe - Radcliffe was a skinny kid, and remembers being called Shrimpy because of his build and his pale skin.

© Reuters

Cristiano Ronaldo - The soccer star was once known for being something of a sore loser, crying when he didn't win. Childhood teammates apparently called him Crybaby.

© Reuters

Henry Cavill - Superman himself was once a bit chubby, at least that's what his classmates thought, calling him Fat Cavill at school. How mean.

© Reuters

Fat Joe - Joseph Cartagena was also known as Joey Crack when he was young. That's apparently because his pants would sag, exposing his rear.

© Reuters

Tom Hardy -

He's played plenty of tough guys on screen, but the actor was apparently called Weasel back in the day.

© Reuters

Karen Gillan - Karen Gillan was called Upside Down Carrot, apparently because she wore a green top all the time.

© Reuters

Barack Obama - According to NBC News, the former president was known as "Barry O'Bomber," because he often missed when shooting hoops in basketball.

© Reuters

Beyoncé - To many, Beyoncé is flawless, but apparently a pair of big ears earned her the name Dumbo as a kid.

© Reuters

Ed Sheeran - The red-haired singer has been known as everything from Ginger Jesus to Fire Crotch.

© Reuters

Daniel Craig - 007 was also called Mr. Potato Head, apparently because he wasn't always the handsome man he is today.

© Reuters

Mila Kunis - Growing up, Mila Kunis was nicknamed Goldfish, because of her short attention span.

© Reuters

Blake Shelton - The country star was known as Toad, apparently because he used to collect frogs, lizards, and snakes as a kid.

© Reuters

Sonam Kapoor - The Bollywood star was apparently bullied by her own family. Kapoor's father nicknamed her Giraffe, because of her height.

© Reuters

Henry Rollins - In high school, Henry Rollins was known as Hank the Crank. It's not clear how the musician got this humorous name.

© Reuters

Aishwarya Rai - The Miss World winner and actress grew up with Gullu as a pet name. 

© Reuters

Nathan Sykes -

The singer was once known as Skyo, or Psycho. He later found fame with boyband The Wanted.

Do you also know the real names of these stars?

© Reuters