Episode 821

The nineteenth episode of Season 8, and the one hundred and ninty-first episode of America's Got Talent overall, aired on August 21, 2013. It was the fifth and final Quarterfinals results episode and took place in New York, in Radio City Music Hall. 4 acts proceeded to the Semifinals, and 8 acts were eliminated.

Wild Card Acts
With the Quarterfinals over, each judge was allowed to bring back one act each to the competition. Two of the four acts were revealed at the end of the episode. Howard Stern brought back, and Howie Mandel decided to give another shot as well.

Guest Performers

 * Train
 * Tom Cotter