America's Got Talent S8E17: Live from Radio City, Week 4 Results
- Aired: 2013-08-14
- Time: 21:00:00
- Runtime: 120 minutes
Overview
The votes are in and four acts from the previous night's performance show move on to the semi-final round of competition. Nick Cannon hosts this variety competition series which features a colorful array of performers hoping to be named the most talented act in America.