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3Penny Chorus and Orchestra during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0704.JPG )

Chloe Channell during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0009.JPG )

Chloe Channell during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0026.JPG )

Champions Forever during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0505.JPG )

Champions Forever during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0568.JPG )

SensEtion during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0594.JPG )

SensEtion during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0628.JPG )

Robotix during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0630.JPG )

The Robotix during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0080.JPG )

Timber Brown during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0208.JPG )

Timber Brown during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0264.JPG )

Cami Bradley during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0302.JPG )

Cami Bradley during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0344.JPG )

Tummy Talk during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0417.JPG )

Tummy Talk during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0450.JPG )

Taylor Williamson during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0647.JPG )

Taylor Williamson during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0057.JPG )

Aerial Ice during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0884.JPG )

Aerial Ice during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0516.JPG )

David Ferman during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0455.JPG )

David Ferman during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0479.JPG )

Nick Cannon and David Ferman during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_1453.JPG )

Jimmy Rose during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_1484.JPG )

Jimmy Rose during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0178.JPG )

Jimmy Rose during 'America's Got Talent' at Radio City Music Hall in New York City on Tuesday, August 13, 2013. (Virginia Sherwood/NBC) ( NUP_157365_0201.JPG )