Kylie Jenner Debuts New Ice Blue Hair In a Plunging White Jumpsuit

Kylie Jenner's new 'do is cool for the summer.

Kylie Jenner is known for ushering in the turquoise hair color trend, but now the stylish 17-year-old is going a whole lot lighter for the summer.

Kylie debuted a head-turning new 'do on Thursday while promoting her hair extensions line at Bellami Beauty Bar in West Hollywood, California, rocking ice blue hair. Sporting a plunging white jumpsuit that showed plenty of cleavage, the reality star's look was as edgy as ever.

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A close-up of her new hair shows she purposely left her dark roots showing.

Kylie's older sister Kendall Jenner clearly approves. "Babe, you're blue," the 19-year-old supermodel wrote on Instagram with a glamorous candid shot of Kylie.

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But how do Kylie's hair extensions really match up to other celebrity lines like Demi Lovato's and Christie Brinkley's? Watch ET put the most popular celebrity hair extension lines to the test in the video below!