Howard Stern, Heidi Klum, Mel B and Howie Mandel are to return as judges to the summer competition series "America's Got Talent," NBC announced Wednesday. Nick Cannon is also to return as the show's host. The announcements were made by Paul Telegdy, president of alternative and late-night programming for NBC Entertainment. "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 fireworks of their own," Telegdy said in a statement. "Along with Nick serving as an incomparable host, our talent on 'Talent' is among the finest on all of television."