Jessica Alba
No more brunette for Jess! The A-list actress lightens up with a layered blonde do.
Sarah Hyland
The Modern Family actress changed up her locks with a "Beyoncé" blond hue on Nov. 15.
Lily Allen
The "Smile" singer is now sporting strawberry-blond locks—a departure from her stint with purple.
Cara Delevingne
Buh-bye, blonde! Cara picks a warm chestnut shade just in time for winter.
Demi Lovato
Something new and something blue! Demi picks a black and blue ombré as her latest hair color du jour.
Jena Malone
Jena ditched her formerly-blond tresses for a super bright all-over red hue. She posted the new look on Instagram with the caption, "Drastic times call for drastic measures."
Shailene Woodley
Shailene must be in a blond state of mind because she's lightening up these days! The actress looked glowing when she debuted her newly-blond look on the red carpet at Paris Fashion Week.
Vanessa Hudgens
Just one week after her BFF Ashley Tisdale dyed her ends lavender, Hudgens hit up the same salon for a bold scarlett effect.
Michelle Monaghan
The actress continued her blond progression. Next stop? Platinum!
Ashley TIsdale
Out with the old, in with the lavender! Ashley Instagramed a snapshot of her colorful new do, writing: "I may have a cold but I got lavender in my bun :)."
Suki Waterhouse
Just in time for fall, the model sheds her summery blond color in favor of a coppery brunette.
Camilla Belle
Camilla's lightened-up locks perfectly frame her face and add dimensionality to her already gorgeous hair.
Jemima Kirke
The Girls actress switched things up with a light pink look that she showed off at the Metropolitan Opera season opening in NYC.
Sandra Bullock
The Oscar winner ditched her brunette locks for a lighter look to play a role in the upcoming film, Our Brand Is Crisis.
Elle Fanning
The 16-year-old dyed her hair dark and chopped off a few inches—all for an upcoming role. Now that's committing to your character!
Alanis Morissette
You oughta know that Alanis Morissette decided to breakup with her signature dark long locks and lighten up with a new, shorter and very blond look.
Drew Barrymore
Just in time for fall, Drew dyed her hair a darker chocolate shade.
Kate Mara
The 31-year-old is hopping on the team-redhead bandwagon with this new auburn 'do.
Emma Roberts
Emma said goodbye to her darker color and went for a summery shade of blond—plus extensions!
Elisabeth Moss
The Mad Men actress lightened up and debuted her golden brown tint at the The One I Love premiere in New York City.
Kristen Stewart
Kristen ditched her bright orange locks and went back to her natural brunette state.
Kesha
Kesha is determined to make "chlorine green" hair a thing! The star dyed her hair powder blue and then quickly followed up with this shade of pale green.
Lauren Conrad
LC seriously lightened up her dirty blond tresses with a platinum hue.
Shenae Grimes
The former 90210 star didn't completely ditch her chestnut locks; she just rebooted her go-to 'do with a lively auburn ombré.