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Demi dyed her hair blue (among other colors this year), writing: "#tealhairdontcare"
Demi Lovato
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Kylie went back to blue-green again.
Kylie Jenner
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Ariana went just slightly darker with her hair color.
Ariana Grande
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Katy tried on a lot of different colors this year, even drawing inspiration from a Muppet!
Katy Perry
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Vanessa went super red this year - red hot!
Vanessa Hudgens
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Sarah went super blonde in 2014.
Sarah Hyland
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Ariel got a hot red hair makeover!
Ariel Winter
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Lena went with a minty green hue.
Lena Dunham
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Ashley showed off a lavender shade of purple.
Ashley Tisdale
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Kesha is a beautiful rainbow.
Kesha
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That's so colorful, Raven!
Raven Symone
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It seems like so many celebrities changed up their hair in 2014, with more dyed heads of hair than we can count! Everyone from Demi Lovato to Katy Perry, Kesha to Justin Bieber showed off some new colors this year.
Who was your fave though - and which color was the most surprising and/or most flattering?
What kind of hair trends can we expect in 2015? No doubt Demi will try on a new shade (or two) and Katy will shake things up a few more times, but will we be seeing any unexpected celebs making next year's roundup.