Plot: Four acts are selected to advance to the finals in a results edition. David Hasselhoff performs, as do the Muppets' Kermit the Frog and Miss Piggy

America's Got Talent - Season 4 - Semifinals, Group 1 Results (Episode 22)
Episode Aired On:
Wednesday, September 2 2009
15 years ago
Wednesday, September 2 2009
15 years ago