Kylie Jenner
Keeping Up With the Kardashians star debuted icy blue locks at the launch of her Kylie Hair Kouture extension line at Bellami Beauty Bar in West Hollywood.
Busy Phillips
"Back to work. Back to blue," the star captioned her debut blue-haired Instagram.
Kelly Ripa
From pink to blue! The Live with Kelly and Michael co-host traded in her bright pink hair for a temporary teal tint.
Jessie J
The "Bang Bang" singer debuted ice blue locks to her Instagram followers on May 9.
Amber Rose
This model mama shows off her vibrant new hue during a night out in West Hollywood.
Hilary Duff
The 27-year-old is now rocking turquoise-dipped "mermaid" locks!
Lance Bass
The former 'N Sync heartthrob trades his dirty blonde color for a brighter teal tint, captioning the Instagram pic "#MyLittleBrony."
Nicole Richie
Goodbye lavender locks, and hello new blue 'do! The star debuts her bright new hair color on Good Morning America.
Miley Cyrus
This fashionista calls her new blue hue "platinum."
Chris Brown
Breezy debuted his new dye job via Instagram: platinum blond base with a bright aqua blue fauxhawk. Are we surprised?
Cher Lloyd
The British pop star took the blue plunge, dying every surface of her previously brunette bed of hair. The X Factor vet proudly rocked this look at Q102 radio station in Philadelphia.
Jaime King
Hue's that girl?! Leave it to a fashionista to jump on the trendy bandwagon, as the Hart of Dixie starlet showed off her newly dyed locks while attending her hubby's birthday party.
Zahara Jolie-Pitt
Brad Pitt and Angelina Jolie's eldest daughter is a totally girlie-girl when it comes to her clothes, but the fashionista decided to rock edgy blue braids during a trip to New Orleans with her fam.
Nicki Minaj
Although this Harajuku Barbie has rocked many wigs, she keeps it interesting with this two-tone hairpiece for the American Music Awards Press Conference.
Ke$ha
Known for rocking the occasional blue lip, this time miss K-Dollar Sign-Ha wears it in her hair as she leaves the amfaR Inspiration Gala.
Kat Von D
From the tattoos to the makeup to the hair, this is one colorful babe.
Kingston Rossdale
This mini fashionisto takes a tip from one of mommy Gwen's old looks with this stylish blue mohawk.
Pink
The new mama steps off the set of her upcoming flick Thanks For Sharing in NYC looking a little blue.
Lady Gaga
This blue 'do seems tame compared to what we're used to seeing the "Born This Way" singer in!
Paris Hilton
The heiress decided to give this wig a test drive before committing to it.
Adam Lambert
The over-the-top singer recently showed up to VH1's Do Something Awards having done something different to his signature black spikey hair.
Kate Bosworth
Caught! The blond beauty stepped out with director Michael Polish sporting some tinted tips at a Coldplay concert in L.A.
Katy Perry
The "California Gurls" singer's wig was in honor of her role as Smurfette in the new Smurfs movie.
Juliette Lewis
The wacky actress showed off her rocker chick side at the premiere of The Switch.