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!

NICOLE RICHIE

"We have gradually been going darker over the last few months," says George Papanikolas, Joico celebrity colorist for the Andy Lecompte Salon, who gave Nicole the new color she debuted this week. "We started with blond, went to an ombré hair with darker roots and lighter tips and then arrived at this rich sable brown." The star also added sexy, shaggy bangs and several more inches.