AP AP-Entertainment NewsThe estimated reading time is less than a minute Final 4 acts advance on 'America's Got Talent' News Sources September 9, 2010 at 5:34 am0 By DERRIK J. LANG 2010-09-09T09:34:51Z LOS ANGELES (AP) — Three very different singers and a group of special-effects wizards got talent – and votes…. Leave a comment