Hair color makes a huge difference — just ask any of these 10 celebs.
Once they took the plunge and dyed their natural locks, things started looking up. In their personal life, their self-esteem, and even their careers.
From Emma Stone to Olivia Wilde to Katy Perry, here are 10+ female celebs who got more famous after they dyed their hair.
Amy Adams

The moment the natural blonde turned to the red side, her career went on the up and up.
“The minute I went red, it was quirky and fun instead of flirtatious and dumb,” Adams told The New York Times’ “TimesTalks”
Leighton Meester

When you think of the actress, you probably picture her brunette Blair Waldorf locks.
As it turns out, she dyed her natural blonde hair for the role since Gossip Girl already had a blonde cast member in Blake Lively.
Olivia Wilde

The natural blonde found that people treated her differently as a brunette.
That’s because being blonde came with a lot of stereotypes, like people assuming she was stupid. “I feel people treat me now how I should be treated,” she told Bang! Showbiz .
Sophie Turner

It’s really hard to imagine Sansa Stark from Game of Thrones as a blonde. But that would have been the case since Turner is actually a natural blonde.
Dying it red was essential for her breakout role on the hit show.
Mandy Moore

The actress and singer felt a real uptick in her career when she ditched the natural blonde for brunette.
“As silly as it sounds, there was a real significance in the way that people saw me, but also in the way that I carried myself and that I saw myself,” she told Us Weekly .
Christina Hendricks
The Mad Men star went mad over her dyed red hair since it helped land her more roles.
“I booked two or three jobs, because were a lot fewer redheads than blondes,” she told The Daily Mail .
Cynthia Nixon
“Kim [Cattrall] and Sarah [Jessica Parker] were blonde, so we wanted to mix it up a little,” the Sex and the City alum told Today about dying her natural locks red.
In the end, the look helped her fully embrace the fiery character.
Deborah Ann Woll

Red was the true fit for the True Blood star.
She first dyed it in high school and ended up keeping it when starting out her acting career. Since she landed True Blood with it, she was clearly on to something.
Dita Von Teese

The star’s striking black hair is a huge part of her signature look. This makes it all the more surprising that she’s actually a natural blonde.
While talking to Into the Gloss , she said that the blonde made her look like a “California girl.”
Marilyn Monroe
If anyone knows that blondes have more fun, it was Marilyn Monroe.
She also knew that being blonde landed her more roles, as she became the sex symbol she’s known as today thanks to dying her brunette locks blonde.
Kristen Stewart
A lot of us forget that Kristen was famous before Twilight . Maybe this is because her hair was her natural blonde back then.
Once she dyed it brown to play the demure Bella Swan, her career opened up.
Sofia Vergara
“When I started auditioning for American acting roles, they didn’t know where to put me,” she told Parade in 2011.
That’s because casting agents weren’t used to seeing a blonde Latina. Once she dyed it, more roles opened up.
Alyson Hannigan

Since all leading ladies on Buffy the Vampire Slayer were brunette, the show’s creator asked if anyone would dye their hair red.
“I went for it,” Hannigan told PopSugar about the decision that cemented her look.
Lucille Ball
Can you believe that one of the most famous redheads in history isn’t even a natural redhead??
When she worked as a model, she switched to red after her agency, MGM, suggested it . Very good call!
Karen Elson

It was actually Christina Hendricks who inspired the model to dye her hair red.
“We did a shoot together and I remember her beautiful red hair, and I had the worst sort of strawberry blonde mousy hair, and she was like, ‘Here, you should dye your hair red, it’s going to work for you,'” she told The Cut .
Jennifer Lawrence
You’ve known her as either blonde or brunette, but the color that started her career was the latter.
She had to dye it brown to match the description of Katniss Everdeen from the Hunger Games books.
Gwen Stefani

It’s impossible to picture the singer without her platinum blonde locks . The look became a huge part of her punk rock edgy look when she was the lead singer of No Doubt.
Can you guess her natural color?
Katy Perry

The singer made a smart move before she released her first single in 2009: she dyed her blonde hair jet black.
Coupled with her big blue eyes, this striking look helped her stand out at a time when she needed it most.
Emma Stone

Given how well red suits her, it’s crazy to think that it’s not her natural color. That is actually blonde!
She first dyed it red for 2007’s Superbad . Since she landed many roles after that with the color, it stuck.