http://www.younghollywood.com Heroes star Hayden Panettiere and her brother, Jansen Panettiere, are fans of "America's Best Dance Crew" and even visited a taping of the show at Sony Studios in Los Angeles. YoungHollywood.com was there for the reaction of dance crew "Jabbawockeez" to the star watching their performance and Hayden tells us why she's excited to see them! Hosted by Jill Wilderman.