A person's name can shape your perception of them. For example, I feel like I'd be a somewhat different person if I went by "Kris" or "Krissy" instead of Kristen. I'm always fascinated to learn what someone's full name is when they go by a nickname.
Here are 22 celebs who go by a nickname and what their real names are:
1. Kris Jenner is Kristen.
Her full name is Kristen Mary Jenner.
2. Will Smith is Willard.
HIs full name is Willard Carroll Smith II.
3. Jack Harlow is Jackman.
His full name is Jackman Thomas Harlow.
4. JoJo Siwa is Joelle.
Her full name is Joelle Joanie Siwa.
5. Shay Mitchell is Shannon.
Her full name is Shannon Ashley Garcia Mitchell.
6. Gigi Hadid is Jelena.
Her full name is Jelena Noura.
She told Vogue, "My mom was called that [Gigi] as a kid by her mother when she was younger, but only around the house. I was called that around the house when I was really young, kind of like how my mom was called it. In first or second grade, there was a girl named Helena, and it got confusing with the teacher who had to call out our names, and so the teacher asked my mom, 'If I needed to call Jelena a nickname, what would it be?' And my mom was like, 'I call her Gigi sometimes,' and the name stuck."
7. Bella Hadid is Isabella.
Her full name is Isabella Khairiah Hadid.
8. KJ Apa is Keneti James.
His full name is Savae Keneti James Fitzgerald Apa, Moata'a.
Savae is a Matai title (chief title) bestowed upon him by Moata’a, his village in Samoa.
9. Skeet Ulrich is Bryan.
His full name is Bryan Ray Ulrich.
Skeet is a nickname he got from a Little League coach who thought he was quick like a mosquito.
10. Katy Perry is Katheryn.
Perry is her stage name, so her full name is Katheryn Elizabeth Hudson.
11. Bella Thorne is Annabella.
Her full name is Annabella Avery Thorne.
12. Tan France is Tanveer.
His full name is Tanveer Wasim France.
13. Spike Lee is Shelton.
His full name is Shelton Jackson Lee.
When he was a baby, his mom nicknamed him Spike because she thought he was tough.
14. Maisie Williams is Margaret.
Her full name is Margaret Constance Williams.
15. Mila Kunis is Milena.
Her full name is Milena Markovna Kunis.
16. Kit Harington is Christopher.
His full name is Christopher Catesby Harington.
17. Nina Dobrev is Nikolina.
Her full name is Nikolina Kamenova Dobreva.
18. Lucy Hale is Karen, but her middle name is Lucille.
Her full name is Karen Lucille Hale.
19. Nicki Minaj is Onika.
Her full name is Onika Tanya Maraj-Petty.
20. Tina Fey is Elizabeth, but her middle name is Stamatina.
Her full name is Elizabeth Stamatina Fey.
21. Mandy Moore is Amanda.
Her full name is Amanda Leigh Moore.
22. And finally, Bruno Mars is Peter.
His full name is Peter Gene Hernandez.
Mars is a stage name, but he got the nickname Bruno as a toddler because his family thought he looked like Bruno Sammartino, a famous wrestler.