Nicole Richie
Richie had a much-talked-about hair color run in 2014, dying her hair light lavender, cobalt and midnight blue within the span of a few months. Back in April, Richie opened up about her decision to ditch plain ol' brown and blond locks: "I colored my hair for my daughter. It's a lot of upkeep actually, but I'm very popular at her school."
Robert Pattinson
The actor debuted something we can only describe as a modern mushroom cut on Nov. 13. Perhaps the 28-year-old is taking a cue from his edgy rocker girlfriend FKA Twigs?
Kaley Cuoco-Sweeting
The actress took a load off in June when she cropped her locks into a cute, face-framing pixie.
Lauren Conrad
Conrad's chic new bob is proof that you shouldn't make promises you can't keep: The star once declared that she would never cut her hair again! Conrad surprised fans by taking her hair even shorter during a surprising second cut just days after chopping her locks into a long bob.
Vanessa Paradis
Well, that's one way to make a statement: The French singer went for a dramatic change with this cropped, curly 'do only days after it was reported that ex Johnny Depp had proposed to Amber Heard.
Elle Fanning
The actress went from Sleeping Beauty to brunette beauty in September. "I had to do it for a film that I'm in the middle of shooting right now...I feel a little more serious," she told E! News of the switch.
Pamela Anderson
The actress has been experimenting with her tresses in 2014, playing with hair-raising extensions, slicking her pixie and adding volume to her short cropped waves.
Adam Levine
The singer dyed his hair platinum blond in May, debuting the new look to followers on Instagram. (The Billy Idolesque 'do didn't last long, Adam was back to brunette soon after.)
Kylie Jenner
Kylie is giving Katy Perry stiff competition over who can change hair color more times in a matter of weeks. Between October and November, the reality star swapped her extensions from black, to steel gray, to dove gray and then (back) to teal blue.
Katy Perry
No hue is too wild for Ms. Perry—the singer changes her hair color and style more often than we can count!
Keke Palmer
The actress went for a cute cropped pixie just days before her Cinderella on Broadway debut in September.
Sienna Miller
Back in July, Miller surprised fans by chopping her locks into a chic asymmetrical bob.
Lena Dunham
The star went minty fresh with this pale teal hue after months of rocking a platinum blond look.
Shailene Woodley
The star took her cropped locks to a darker chocolate brown hue in October.
Jena Malone
Whoa! Malone took a walk on the fiery side when she dyed her hair a vibrant red hue in early October.
Zosia Mamet
It seems the Girls star took a cue from Lena Dunham when she dyed her platinum blond in September. She later changed her hair hue-game again: Going gray in early December.
Jemima Kirke
The actress was one of a few stars who went for a pink dip-dyed look in 2014 (we see you, Kate Hudson).
Cara Delevingne
Delevingne wowed us—with no wacky faces in sight—when she dyed her normally tousled blond looks to a rich chestnut hue.
Demi Lovato
Lovato has had a transformative year in hair, from experimenting with offbeat ombré colors, to cropping her locks into a short bob, to shaving the sides of that bob to—whew—going blue in October.
Jaimie Alexander
Up, up and away—to a chic pixie that is. The actress' hair evolution in 2014 was a story of keeps-getting-shorter.