America's Got Talent 'America's Got Talent' advances four more acts to the semifinals 08/15/2013 America's Got Talent revealed its fourth set of four eighth-season semifinalist acts during Wednesday night's live broadcast of the NBC reality competition series. Read More RELATED NEWS 'America's Got Talent' judges advance eight ninth-season acts straight to live showsNick Cannon tweets 'I'M RACIST!' following 'whiteface' controversyNick Cannon sparks controversy by using "whiteface" photo to promote his new album TAGS: America's Got Talent Melanie 'Mel B' Brown Ty Brown Heidi Klum Howie Mandel Howard Stern