America's Got Talent

Season 8 Episode 17: Live from Radio City, Week 4 Results

The votes are in and only four acts from the previous night's performance show move on to the semi-final round of competition.

Genre:

Reality

Seasons:

21

Episodes:

515

Cast:

Simon Cowell, Howie Mandel, Sofía Vergara

Quality:

HD

Duration:

85 min

First Air:

2006

Rating:

5.7