Transformation

Throughout her model/actress career, Jaime Pressly has let her roles dictate her coif. "She adapts to different characters, utilizing her hair as part of the evolution," her hairstylist Sean James told us. She's gone dark, played with auburn streaks and, for her breakout part as Joy on My Name is Earl, she sported the biggest of big hair. "She would never really wear her hair like Joy—she prefers very classic, sophisticated looks," said James. Indeed, post-Earl, she has favored a sleek blunt bob perfect for her current gig—a busy mother of one.

The Jack & Jill star wore her highlighted locks in long layers.