David Copperfield, Donna Summer, Goo Goo Dolls, Jewel, Lionel Richie, The Beatles LOVE by Cirque du Soleil, Sarah Brightman, Usher and many more surprise guests will appear before this season's winner of "America's Got Talent" is revealed live by host Nick Cannon.
The final four acts return to the stage for the final time, where they find out how viewers voted following their final performances the previous night, and Nick Cannon announces which act has won the $1 million prize and the chance to headline.
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