Kelly Clarkson FACEPLANTS as Anne Hathaway Sings 'Since U Been Gone'

During a visit to 'The Kelly Clarkson Show,' Anne Hathaway and the host go head-to-head in a game of 'Sing That Name That Tune.' The pop star literally falls to the floor as the Oscar-winner recognizes Clarkson's hit song 'Since U Been Gone' before she does! 'The Kelly Clarkson Show' airs weekdays on NBC