'America's Got Talent': All Four Judges, Host Nick Cannon Returning

Howard Stern, Heidi Klum, Mel B and Howie Mandel all have signed on for the NBC reality show's ninth season. NBC said Wednesday that all four America's Got Talent judges -- Howard Stern, Heidi Klum, Mel B and Howie Mandel -- will be returning to its summer reality competition. In addition, Nick Cannon has signed on to return as host. "Howard, Heidi, Mel and Howie have proven that they are a dynamic quartet of judges who aren’t afraid to share their opinions, while at the same time creating fir...