Variety acts of all types and contestants of all ages audition before judges Simon Cowell, Mel B, Heidi Klum, Howie Mandel. Tyra Banks hosts.

Week 2 of the auditions brings more amazing and outrageous acts to the stage.

Week 3 of the auditions brings even more amazing and outrageous acts to the stage.

Week 4 of the auditions brings more fun and surprises!

Week 5 of the auditions brings even more amazing and outrageous acts to the stage.

Relive the best moments of Season 13 so far! Join Simon Cowell, Heidi Klum, Mel B, Howie Mandel and host Tyra Banks for the best auditions of the season.

More acts give it their all during the last round of auditions, wowing judges Simon Cowell, Heidi Klum, Mel B, Howie Mandel and host Tyra Banks.

Comedian Ken Jeong joins the judges' panel and gets the opportunity to send an act directly to the live shows via the Golden Buzzer. Contestants have one last chance to impress the judges before the live rounds.

Actress Olivia Munn joins the judges' panel and gets the opportunity to send an act directly to the live shows via the Golden Buzzer. Contestants have one last chance to impress the judges before the live rounds.

Singer Martina McBride joins the judges' panel and gets the opportunity to send an act directly to the live shows via the Golden Buzzer. Contestants have one last chance to impress the judges before the live rounds.

Chris Hardwick joins the judges' panel and gets the opportunity to send an act directly to the live shows via the Golden Buzzer. Contestants have one last chance to impress the judges before the live rounds.

Relive the best moments of Season 13 before the Live Shows begin!

The first 12 of the final 36 acts take the stage live to compete for America's vote.

The first 7 acts moving on to the semifinal round are revealed.

The second 12 of the final 36 acts take the stage live to compete for America's vote.

The second 7 acts moving on to the semifinal round are revealed.

The last 12 of the final 36 acts take the stage live to compete for America's vote.

The final 7 acts moving on to the semifinal round are revealed.

Half of the semi-finalists perform for a chance to make it to the finals.

Only 5 of the previous night's performers will move on to the Finals.

The 2nd half of the semi-finalists perform for a chance to make it to the finals.

Only 5 of the previous night's 11 performers move on to the Finals. The boy-band BTS performs.

The top 10 acts compete one last time for the chance to win $1 million.

The winner of the $1 million prize is revealed after many guest performances and other surprises.

Comedians, singers, mentalists, a sword swallower, a contortionist and more champions from around the world compete. Ten acts perform and two go through to the finals. Plus, there are new judges: superfans from all 50 states!