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Kylie Jenner

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Hilary Duff, your move.

Last month, when Duff debuted "mermaid" blue hair, many immediately noticed the similarities to Kylie Jenner's color when she donned the teal tips on her raven tresses, but now the E! star has upped her colorful style with one electrifying new 'do.

Kylie posted a new selfie on Snapchat and surprised fans by debuting an even brighter hairstyle—long, aqua blue locks! What prompted the change? Maybe just a fresh new look, or maybe Coachella this weekend? "The road trip begins..." she captioned a shot of her new hair on Instagram.

While it's not confirmed one way or another, chances are Jenner didn't actually dye her hair but opted to have some fun with a wig (however, you never know for sure with Kylie, so we'll wait and see what hair 'do she rocks in her next selfie).

Kylie Jenner, Instagram

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Kylie has never been one to shy away from flaunting exciting colors on her tresses.

According to Andy Lecompte Salon colorist Daniel Moon, the man behind her last blue ‘do, "Punk is the new pretty and pretty is the new punk."

And that kinda explains why the E! star opted for the cerulean tint when she visited him last year. Moon previously told E! News Kylie was "asking for either a green or blue color. I created a custom green and blue palette she liked using Pravana Vivids hair color."

She "made my job easy," he added. "She came in asking for blue or green hair, and was very aware of the effect the chosen shade would have on her skin tone, and how it would fade. I recommended using more than one color to add dimension and she agreed."

Well, if she decides to go aqua permanently, we're on board.

Don't forget to tune in to Keeping Up With the Kardashians on Sundays at 9 p.m., only on E!

PHOTOS: See more celebs' changing hair colors