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

NICOLE KIDMAN

The blonde adds elegant large curls to her long locks for an appeaance on The Late Show with David Letterman.

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