America's Got Talent: Jimmie Herrod performs last during first semifinals and becomes frontrunner

Heidi Klum and Sofia Vergara lead the red carpet at America's Got Talent semifinals

'America's Got Talent': Jimmie Herrod Closes Out 1st Semifinals With Epic Pink Cover - See All the Highlights!

Heidi Klum laughs off THAT wardrobe malfunction on America's Got Talent that exposed her bum