1. Alexis Bledel

Real name: Kimberly Alexis Bledel

The star we've come to know as the one and only Rory Gilmore goes by a shortened version of her name, just like her character who is really Lorelai Leigh Gilmore.

2. Mandy Moore

Real name: Amanda Leigh Moore

The "This is Us" queen's stage name is pretty similar to her stage name. However, she never strongly identified with her name, so she took the opportunity to change it up a little.

3. Meghan Markle

Real name: Rachel Meghan Markle

The (technically former) Duchess of Sussex goes by her middle name in the spotlight. These days, that may be the least interesting fact about her life though.

4. Gigi Hadid

Real name: Jelena Noura Hadid

The supermodel goes by Gigi because it was her nickname as a child that she ended up adopting full time after a teacher needed a nickname to call her in class. I'm not really sure where Gigi came from though as her first name is pronounced Yelena.

5. John Legend

Real name: John Roger Stephens

This dreamy singer (among other impressive ventures) goes by a nickname his friends gave him. He says it got to the point that he was known by John Legend more than his give name, so he took the bold chance of making it his stage name.

6. Reese Witherspoon

Real name: Laura Jeanne Reese Witherspoon

The "Legally Blonde" star who has built herself an empire simply goes by her mother's maiden name instead of Laura-Jeanne as she used to.

7. Emma Stone

Real name: Emily Jean Stone

This actress changed her name for the biz because someone else in Hollywood went by Emily Stone and her nickname was "M" anyway. Seems to have worked out just fine!

8. Halsey

Real name: Ashley Frangipane

OK, so obviously Halsey isn't her real name, but the story of how she chose her stage name is a good one. Many suspect the name is an anagram of Ashley, but in all reality she adopted a friend's street name because she made a lot of her music there.

9. Bruno Mars

Real name: Peter Gene Hernandez

This legendary singer has been called Bruno as a nickname since he was a toddler. He adopted Mars as a last name to avoid being stereotyped as a Latin pop singer.

10. Katy Perry

Real name: Katheryn Elizabeth Hudson

The singer and "American Idol" judge we know as Katy Perry created her stage name in her adolescence to have a character she could embody in order to keep her personal life separated from her career in her mind.

11. Lorde

Real name: Ella Marija Lani Yelich-O'Connor

While she prefers to go by her given name on the daily, the "Royals" singer wanted a name with strength and elegance that stands out from the crowd.

12. Mindy Kaling

Real name: Vera Mindy Chokalingam

The amazing comedian many of us met as Kelly Kapoor from "The Office" was born to Indian parents that wanted to give their daughter a Hindi name. However, Mindy became the comedian's preferred name. When she was working her way up in comedy, she also chose to shorten her last name, leaving us with the name we know her as: Mindy Kaling

13. Tina Fey

Real name: Elizabeth Stamtina Fey

This SNL star uses a shortened version of her middle name for the stage. She did however incorporate her first name into her show "30 Rock" as her character's name: Liz Lemon.