Due to a back injury, Simon Cowell will be sitting out Tuesday and Wednesday's episodes of "America's Got Talent", but will have someone very close to him filling in.
Kelly Clarkson, whom Simon once had a hand in crowning the winner of "American Idol," is set to serve as a guest judge on this week's live telecasts.
Kelly will be joining fellow judges Howie Mandel, Heidi Klum and Sofia Vergara. Terry Crews hosts the program.