She’s built her reputation on her grungy offscreen style, but Kristen Stewart really got tongues wagging today when she showed up to tape the Late Show with David Letterman in NYC sporting short strawberry blond hair! Gone were her dark shoulder-length locks, replaced by chin-skimming fiery red tresses. While the new look is reported to be for her upcoming role as MaryLou in the film adaption of Jack Kerouac’s On The Road, the softer style marks a distinct departure from any do we’ve seen her rock before. While we’ve loved seeing the Twilight Saga star transform from Bella’s girl-next-door tresses to Joan Jett’s rocker-cool mullet and back again, we have to admit that we might love seeing Kristen’s screen-siren side most of all. Tell us: Do you think that Kristen’s hair is red-hot–or should she go back to the dark side?