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!

  • KRISTEN STEWART photo | Kristen Stewart

Credit: Sam Sharma/Pacific Coast News; DZILLA/Bauer-Griffin

Updated: Thursday Dec 31, 2009 | 06:00 AM EST By: Katherine Kluznik Rentmeester

KRISTEN STEWART

After channeling Joan Jett – complete with a mullet! – for a biopic about the rocker, the Twilight star went back to Bella's long locks to reprise her role in Eclipse.