09/17/2015 11:18 EDT | Updated 09/17/2015 11:59 EDT

Kylie Jenner Debuts Mint Green Hair At Sugar Factory's New Restaurant In NYC

We had a feeling Kylie Jenner's blond hair wouldn't last long!

Just two weeks after lightening her brunette locks, the 18-year-old reality star has opted for yet another hair colour -- pastel green!

Following her runway appearance at Kanye West's Yeezy Season 2 fashion show, Jenner stepped out in New York City with long, mermaid-esque tresses in a minty hue for the grand opening of Sugar Factory American Brasserie. The green locks were shown off nicely against Jenner's white crop top and high-waisted skirt combo.

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The youngest of the Kardashian-Jenner clan opted for a less made-up look than usual, with bold lashes and nude lips.

kylie jenner

No word yet on whether or not Kylie's new hair is a wig, but knowing her, we'll probably see another hair change very soon.

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