<P> During the live shows, the final selection of participants, which has ranged from between 20 to 60 acts and include those that were chosen as Wildcards by the judges or received the Golden Buzzer, are divided into groups and compete against each other for viewers' and judges' votes . The general structure of the live episodes focuses first on four quarterfinals, and then two semi-finals, aimed at finding that season's finalists . Additional rounds are conducted when required (such as a "Top 8" or a "Top 10", depending on the season). Live episodes are broadcast weekly, and featured performances by guest stars, including previous winners of America's Got Talent . During these stages, the judges still provide feedback on an act's performance when it is over, and can use buzzers to prematurely end an performance before it is over; in the first season, the judges could not end a performance before it was over . Acts which don't secure a sufficient amount of votes by the public and / or the judges, are eliminated from the competition . </P> <P> Those that make it into the season's final compete against each other to secure the most votes from the public, with the number of finalists varying between seasons . The act which does is declared the winner for that season, in which they secure the programme's cash prize of $1 million, and, since Season 3 (2008), a chance to headline a show on the Las Vegas Strip . Between the fifth and eighth season, the winner was also made the headline act of a national tour with runners up following the final show, stopping in 25 cities . For season nine, however (2014), there was no tour; two shows were held in Las Vegas for the winner and some of the runner - up acts . (See #America's Got Talent Live, below .) </P> <Table> <Tr> <Th> Season </Th> <Th> Premiere </Th> <Th> Finale </Th> <Th_colspan="3"> Finalists </Th> <Th> Presenter </Th> <Th_colspan="4"> Judges (chair's order) </Th> </Tr> <Tr> <Th> Winner </Th> <Th> Runner - up </Th> <Th> Third place </Th> <Th> </Th> <Th> </Th> <Th> </Th> <Th> </Th> </Tr> <Tr> <Th> </Th> <Td> June 21, 2006 </Td> <Td> August 17, 2006 </Td> <Td> Bianca Ryan </Td> <Td> All That </Td> <Td> The Millers </Td> <Td> Regis Philbin </Td> <Td> Piers Morgan </Td> <Td> Brandy </Td> <Td> David Hasselhoff </Td> <Td> N / A </Td> </Tr> <Tr> <Th> </Th> <Td> June 5, 2007 </Td> <Td> August 21, 2007 </Td> <Td> Terry Fator </Td> <Td> Cas Haley </Td> <Td> Butterscotch </Td> <Td> Jerry Springer </Td> <Td> Sharon Osbourne </Td> </Tr> <Tr> <Th> </Th> <Td> June 17, 2008 </Td> <Td> October 1, 2008 </Td> <Td> Neal E. Boyd </Td> <Td> Eli Mattson </Td> <Td> Nuttin' But Stringz </Td> </Tr> <Tr> <Th> </Th> <Td> June 23, 2009 </Td> <Td> September 16, 2009 </Td> <Td> Kevin Skinner </Td> <Td> Bárbara Padilla </Td> <Td> Recycled Percussion </Td> <Td> Nick Cannon </Td> </Tr> <Tr> <Th> 5 </Th> <Td> June 1, 2010 </Td> <Td> September 15, 2010 </Td> <Td> Michael Grimm </Td> <Td> Jackie Evancho </Td> <Td> Fighting Gravity </Td> <Td> Howie Mandel </Td> </Tr> <Tr> <Th> 6 </Th> <Td> May 31, 2011 </Td> <Td> September 14, 2011 </Td> <Td> Landau Eugene Murphy, Jr . </Td> <Td> Silhouettes </Td> <Td> Team iLuminate </Td> </Tr> <Tr> <Th> 7 </Th> <Td> May 14, 2012 </Td> <Td> September 13, 2012 </Td> <Td> Olate Dogs </Td> <Td> Tom Cotter </Td> <Td> William Close </Td> <Td> Howard Stern </Td> </Tr> <Tr> <Th> 8 </Th> <Td> June 4, 2013 </Td> <Td> September 18, 2013 </Td> <Td> Kenichi Ebina </Td> <Td> Taylor Williamson </Td> <Td> Jimmy Rose </Td> <Td> Heidi Klum </Td> <Td> Mel B </Td> <Td> Howie Mandel </Td> </Tr> <Tr> <Th> 9 </Th> <Td> May 27, 2014 </Td> <Td> September 17, 2014 </Td> <Td> Mat Franco </Td> <Td> Emily West </Td> <Td> AcroArmy </Td> </Tr> <Tr> <Th> 10 </Th> <Td> May 26, 2015 </Td> <Td> September 16, 2015 </Td> <Td> Paul Zerdin </Td> <Td> Drew Lynch </Td> <Td> Oz Pearlman </Td> </Tr> <Tr> <Th> 11 </Th> <Td> May 31, 2016 </Td> <Td> September 14, 2016 </Td> <Td> Grace VanderWaal </Td> <Td> The Clairvoyants </Td> <Td> Jon Dorenbos </Td> <Td> Howie Mandel </Td> <Td> Mel B </Td> <Td> Heidi Klum </Td> <Td> Simon Cowell </Td> </Tr> <Tr> <Th> 12 </Th> <Td> May 30, 2017 </Td> <Td> September 20, 2017 </Td> <Td> Darci Lynne Farmer </Td> <Td> Angelica Hale </Td> <Td> Light Balance </Td> <Td> Tyra Banks </Td> </Tr> <Tr> <Th> 13 </Th> <Td> May 29, 2018 </Td> <Td> September 18, 2018 </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table> <Tr> <Th> Season </Th> <Th> Premiere </Th> <Th> Finale </Th> <Th_colspan="3"> Finalists </Th> <Th> Presenter </Th> <Th_colspan="4"> Judges (chair's order) </Th> </Tr>

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