Are you a brunette contemplating a blonde leap? Or vice versa? Well, look no further. We've tracked down the best celebrity blonde and brunette transformations over the years. Ahead, see who made the switch to the dark (hair) side and served up some seriously stunning red carpet looks.
After Allison Williams said farewell to playing Marnie on Girls, the actress lightened up her naturally-brown hair. However, she's since returned to her roots.
Supermodel Bella Hadid lived out every girl's hair fantasy by going blonde over the summer. The natural brunette embraced the color change and posted a snap on Instagram to prove it.
The reality star turned heads when she first went blonde in 2015. Since then, she's often played around with her hair color, ditching her signature raven hair for dusty grey, platinum blonde, and even pink.
Over the years, Blake Lively has switched up her signature blonde hair—including for the Green Lantern movie, where she met her future husband, Ryan Reynolds. But it was the actress' dark ombré look from 2018 that caught our attention.
Though we think model Cara Delevingne looks great with any hair color, she's settled on a platinum blonde pixie cut.
Kendall Jenner went blonde for the first time back in 2015 for a Balmain fashion show. She must've liked it, considering she switched up her dark hair once again this summer.
We can't imagine Blair Waldorf from Gossip Girl with anything but dark brown hair, and neither could the show's producers, which is why Meester dyed her naturally-blonde hair brunette for the role. The actress went back to her roots in 2018.
Whether she's a bright blonde or a dark brunette, one thing is for sure: Shailene Woodley knows how to rock the low pony look.
Sofia Richie made a splash at the Cannes Film Festival when she debuted chocolate brown hair, a far stray from her usual dirty blonde color.
Lucy Hale stayed true to her trusty bob and kept her roots dark when she played around with a blonder look in 2019.
Since her days of sporting Carrie Bradshaw's blonde curls, SJP has stayed blonde for the most part, only venturing out on specific occasions like the 2006 Met Gala.
Margot Robbie's hair is naturally blonde so she turned heads when she arrived at the 2014 Academy Awards with dark brown for her role in Z for Zachariah.
Although Cameron Diaz is known for her bright blonde waves, in 2006 the actress went brunette while promoting The Holiday.
Back in 2005, it felt like Lindsay Lohan had a new hair color every week. Whether she was her classic red, a beach blonde, or dark brown, you never knew what the actress would show up rocking.
Sienna Miller forwent her typical platinum blonde tousle in 2004 for an edgy chocolate brunette color—and we're still here for it.
The actress is a natural blonde, but changed to darker locks for her role in Fifty Shades of Grey.
The California girl usually favors beachy blonde, but has also tried on darker shades—as well as silvery white at the Met Gala.
The actress' signature sunny hue suits her to a T, but we love the way this chocolate shade makes her eyes pop.
We'd be remiss to omit Miss Miley, who's not only played with her hair color, but also her hair lengths.
Alba was one of the forerunners of the ombre hair trend, but her single-toned brown hue is just as lustworthy.
Watson drew major attention when she debuted a pixie cut, but has also played around with her color.
She's best known as a bombshell blonde, but the actress still turned heads as a warm brunette.
Fanning embodied her vampire role in The Twilight Saga films with chilling acting chops—and darker strands.
The Homeland star has admitted that after switching between blonde, brunette, and red so many times, she no longer knows what her natural hair color is.
Though she's stepped out with both champagne and raven-colored hair, Theron made beauty headlines when she decided to shave it all off.
For actresses, making big beauty changes is often just part of the job. In Lawrence's case, playing Katniss Everdeen required a darker hue.
Queen B loves to play with her hair, including lighter locks and a few fun haircuts.
RiRi certainly keeps us on our toes—not only for her chic hairstyles, but for how frequently she changes them up.
These days, the New Girl actress sticks to an eye-popping dark brown, but we can't forget her time as a sweet blonde.