25 Hottest Hollywood Hair Change-Ups of '09

From Nicole Richie's walk on the dark side to Kellie Pickler's red alert, rate the biggest color and cut changes!

EMMA ROBERTS

"What better than to show off my new hair than in New York to see if, you know, blondes do have more fun!" the starlet told PEOPLE of trading her dark brown hair for honey-blonde to head to the set for a new role.