8x16 Quarterfinals Week 4, Performances Live from Radio City Music Hall in New York City
First Aired: Aug. 13, 2013 on NBC
Summary: This week brings another 12 contestants who are ready for the performance of their lives! Things are winding down for the Quarterfinals on “America’s Got Talent“ Season 8 and the pressure is on, as only four of the twelve acts will advance with America’s votes.
Guest Stars[no credits found]