Cameron Diaz
It's a subtle change, but Cameron's slightly darker hue is a reboot for her blond locks.
Nicole Richie
The mother-of-two swaps out her lavender locks in favor of a bright blue shade.
Alyson Hannigan
Not one to stray from her signature redheaded hue, the How I Met Your Mother star reboots her auburn locks with a new carroty color.
Raven-Symoné
Raven-Symoné is never one for a cookie-cutter haircut, and her latest bold look? Her newly-dyed silver and purple locks.
Margot Robbie
From blonde to brunette to redhead! The Wolf of Wall Street actress just can't figure out which shade to pick.
Maggie Gyllenhaal
After dying her hair light blonde only a month ago, the actress is back to brunette.
Sophia Bush
Do blondes really have more fun? Looks like Sophia is going to find out! The 31-year-old actress debuted her lighter look on a taping of Extra.
Nina Dobrev
The Vampire Diaries leading lady switched up her usual brunette do for a summer ombré look at the CW Upfronts in New York City.
Debby Ryan
The Disney darling made the switch from flame-hued hair to an edgy platinum blonde.
Kylie Jenner
Trés punk! The 16-year-old E! star said goodbye to her already ombréd look in favor of an edgy cerulean tint.
Shailene Woodley
The Fault in our Stars actress ditched her brunette color for a honey-hued blonde shade at the 2014 MET Gala.
Zoe Kravitz
The Divergent star first debuted her new blond hue at Coachella, and then again at the Jimmy Choo event in Los Angeles. Zoë ditched the brunette tresses for a lighter hue and added bangs for an overall edgy makeover.
Vanessa Hudgens
The actress was spotted with blond tresses and longer hair extensions at the Coachella music festival in Indio, Calif.
Demi Lovato
The singer parted ways with her playful pink locks and dyed her 'do a deep brunette shade.
Maggie Gyllenhaal
Whoa, that's a major makeover! The actress debuted her golden pixie while in Cannes, France.
Katy Perry
Katy has dyed her hair nearly every color of the rainbow. But "slime green?" That's a first.
Nicole Richie
Never one to shy away from a risk, Nicole went bold and dyed her hair a soft shade of purple.
Jennifer Love Hewitt
The actress and new mom decided to brighten up and go from brunette to a warm shade of honey blond.
Hilary Duff
At the Ramirez Tran salon in Beverly Hills, the former child star going went from dirty blond to platinum. Or as her colorist KC Carhart called it: "Icy blonde."
Kate Bosworth
Hello, red! The beautiful actress told E! News during New York Fashion Week last month that she dyed her hair for her new role in Still Alice.
Ireland Baldwin
Purple reign! Just days after Nicole Richie dyed her hair lavender, the 18-year-old model did the same.
Margot Robbie
The Wolf of Wall Street star debuted her brunette look on the Oscars red carpet.
Julia Roberts
The August: Osage County star was spotted in Los Angeles sporting a very golden ponytail, ditching her signature red strands.
Elizabeth Olsen
The youngest Olsen sister recently revealed her hair transformation on Watch What Happens: Live going from blonde to brunette.