This Week's Hottest Hair

Reese Witherspoon, Kim Kardashian and more prove that getting glam is all about the hair! Get inspired by this week's most stylish dos – then click to find your best hairstyle. By Katherine Kluznik Rentmeester

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JESSICA BIEL

The star adds soft, tousled waves and a side part to her hair for the CNN Heroes ceremony in Hollywood.

Give yourself a new look with InStyle.com's Hollywood Hair Makeover.