Lauren Conrad hair
Credit: Frazer Harrison/Getty;

This weekend, Lauren Conrad Tweeted a picture of her new pink strands—and we got the inside scoop on how she created it! "We used chalk!" her colorist Kristin Ess told us exclusively. "It's a super-fun way to temporarily color your ends because it washes right out. But it's best when worn in a bun because it will get on your clothes." Ess also told us that she and Conrad will be posting a full how-to on their site tomorrow. And this isn't the first time Conrad tried color: she previously worked peach tips and blue highlights. (The latter look has been tried on over 100,000 times in our virtual Hollywood Makeover Tool since she got them in September!) Tell us: Do you like her new hue?

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