Season 4 Semifinals
Location Hollywood, California
Acts Participating 20
Acts Moving On 10
Acts Eliminated 10
Televised from September 1, 2009 - September 9, 2009
Previous Round Season 4 Quarterfinals
Next Round Season 4 Finals

The Semifinals of Season 4 of America's Got Talent took place from September 1, 2009 to September 9, 2009. A total of 20 acts participated. 10 acts proceeded to the Finals, and 10 acts were eliminated.

The Judges' Choice was not used in the Semifinals because the judges could not decide whether to pass through either Fab Five or The Voices of Glory as the jchoice for Week 1. As a result, both acts advanced to the Finals. Originally, 4 acts were supposed to advance to the Finals in each Semifinal week. Because of this extreme circumstance, 5 acts moved on each week, decided solely by fan voting.

Week 1

Main articles: Episode 421 and Episode 422

Moved On:


Week 2

Main articles: Episode 423 and Episode 424

Moved On:


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