Best Dressed 2012

Hollywood's Most Buzzed-About Beauty

From Rihanna's fiery locks to Brad Pitt's grizzly beard, stars got fans buzzing with their outrageous hair and makeup shake-ups

JESSICA WIGS OUT

Sharing her in-flight fun, Simpson took to Twitter to unveil a series of shots of her in wigs – including this one, which her BFF hairdresser Ken Paves dubbed "Aunt Sally."