Hayden Panettiere debuted a drastic new look, sporting blunt bangs, for an appearance on Late Show With David Letterman yesterday in NYC. Along with showing off her new hairdo, she put her fit physique on display in a skintight Alexander McQueen dress for the stop by the talk show. Her new hairstyle is definitely a change from her former style — tell us what you think about Hayden's edgier look. She acknowledged her new 'do on her social media account yesterday by sharing a sneak peek at her bangs and writing, "My friend said to go look at myself in the mirror . . . guess I'll have to trust her opinion." Hayden's new hair may have to be incorporated into her hit show, Nashville, since the season two premiere airs on ABC next month on Sept. 25.