Kelly Clarkson has jumped in to replace Simon Cowell as a judge on America’s Got Talent.Cowell has been forced to sit out the rest of the current season after breaking his back in a weekend bike accident and now the singer who owes her career to the music mogul is joining the show as a judge.Clarkson will take over Cowell’s seat alongside Howie Mandel, Heidi Klum, and Sofia Vergara on Tuesday and Wednesday (August 11-12, 2020) as the show returns.“My friend, Simon Cowell, is doing better now but