Allison Williams
Looks like the actress ditched her signature brunette locks! The Girls star was spotted at the beach sporting a summery platinum-blond look.
Channing Tatum
Is that frosty blond hair we spy, Channing?
Naya Rivera
The new mom treats herself to a revamped blond hair color transformation.
Ashley Tisdale
From red to redder! Ash ups her auburn hair color to a vibrant cinnamon tint .
Greta Gerwig
The actress shows her new red hair at the New York Film Festival.
Anne Hathaway
The actress takes her brunette hue a step further with a glossy black-brown shade.
Sienna Miller
Blond no more! The British actress adds an auburn tint to her 'do just in time for fall.
Poppy Delevingne
It's petal pink-tinted locks for this normally platinum blond beauty, and we gotta say—peach looks good on her.
Ali Larter
The usually flaxen-haired actress opted for a fiery red hue ahead of her next Resident Evil installment.
Jared Leto
Joker no more! Jared ditched neon green for a poppy pink 'do at the 2015 MTV VMAs.
Rita Ora
The unicorn trend is real: Rita added a pink tint to her locks for the 2015 Teen Choice Awards (and then opted for a blue ombré effect just days later).
Taraji P. Henson
Rawr! The Empire star debuts a new fierce new mane on Instagram, which makes us wonder... is Cookie Lyon getting a hair upgrade for season two?
Britney Spears
Ahead of her Hawaiian vacation, the pop star opted for a purple hair makeover.
Scarlett Johansson
Back to red she goes! She hides it well under her fedora, but you can tell her once-blonde pixie cut is now a spicier shade.
Debby Ryan
The star goes from ethereal platinum blond locks to a kitschy watermelon look.
Ginnifer Goodwin
Buh-bye, black hair! The Once Upon a Time actress switches to a pale gray shade with a soft lavender tint.
Lily James
It's "so long blond, hello brunette" for the Cinderella actress!
Nicole Richie
The starlet parted ways with her saccharine pink locks for a refreshed blond 'do.
Blake Lively
Bye-bye, blond! The actress showed off new "bronde" hair on Instagram.
Taraji P. Henson
The Empire star debuted newly violet locks to Instagram on June 27.
Lourdes Leon
Gray (hair) is the new black for Madonna's lookalike daughter.
Ireland Baldwin
The now-brunette beauty shows that changing hair color has no effect on her stunning facial features.
Kesha
Surprise! The singer took her signature blond locks to a self-proclaimed "slimey" green.
Kaley Cuoco-Sweeting
Buttery blond no more! The Big Bang Theory star made the switch to pixie pink just in time for summer.