America's Got Talent 'America's Got Talent' reveals first five fourth-season Top 20 acts 08/06/2009 America's Got Talent revealed its first five Top 20 fourth-season semifinalist acts during Tuesday night's live broadcast of the NBC reality competition series. Read More RELATED NEWS Pamela Anderson helps roast former 'Talent' judge David Hasselhoff 'America's Got Talent' judge Piers Morgan gets engagedDavid Hasselhoff released from hospital, denying psych hold report TAGS: America's Got Talent David Hasselhoff Thia Megia Piers Morgan Sharon Osbourne Nick Cannon