Summary: The summer's hottest reality competition show returns with Mel B, Simon Cowell, Heidi Klum, Howie Mandel, and new host Tyra Banks. In the season premiere, variety acts of all types and contestants of all ages audition for the chance to win the $1 million prize. The Golden Buzzer is back giving five lucky acts the chance to go directly to the live shows at the Dolby Theatre in Los Angeles to compete for America's vote.

Summary: The fun continues with Simon, Mel B, Heidi, Howie, and Tyra as more incredible acts compete for a spot in the next round.

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

Summary: The next round of auditions is full of laughs and tears, and Tyra uses her Golden Buzzer.

Summary: The fun continues as more amazing and amazingly absurd acts try to make it to the Judge Cuts.

Summary: More acts give it their all during the last round of auditions.

Summary: Judges Simon Cowell, Mel B., Heidi Klum, and Howie Mandel reveal some of the biggest and best moments from the season so far.

Summary: Chris Hardwick joins the judges panel and takes over the Golden Buzzer as contestants have one last chance to impress the judges before the live shows. 20 acts perform, and 7 are chosen by the judges.

Summary: DJ Khaled joins the judges panel and takes over the Golden Buzzer as contestants have one last opportunity to impress the judges before the live shows. 20 acts perform, and 7 are chosen by the judges.

Summary: Laverne Cox joins the judges panel and takes over the Golden Buzzer as contestants have one last opportunity to impress the judges before the live shows. 20 acts perform, and 7 are chosen by the judges.

Summary: Seal joins the judges panel and takes over the Golden Buzzer as contestants have one last opportunity to impress the judges before the live shows. 20 acts perform, and 7 are chosen by the judges.

Summary: Before the Live Shows begin, relive the best moments from the season so far, including the Judges Golden Buzzer saves.

Summary: The competition is down to just 36 acts. Twelve performers will take the stage live tonight from the Dolby Theatre in Hollywood as judging is turned over to the American viewing audience.

Summary: Seven of twelve acts from the previous night's show will move on to the semifinal round of competition. Also, a performance by season 11's winner, Grace VanderWaal.

Summary: The second group of 12 acts take the stage live in the Dolby Theatre in Hollywood to try to make it into the semifinals.

Summary: Seven of twelve acts from the previous night's show will move on to the semifinal round of competition. Tonight, viewers will have one last chance to send their favorite performer to the next round by participating in the Dunkin' Save. Also, a performance by Circus 1903.

Summary: The final group of 12 acts take the stage live in the Dolby Theatre in Hollywood to try to make it into the semifinals.

Summary: Seven of twelve acts from the previous night's show will move on to the semifinal round of competition. Tonight, viewers will have one last chance to send their favorite performer to the next round by participating in the Dunkin' Save. Also featuring a surprise guest performance.

Summary: Semifinalists perform for a chance to move on to the finals.

Summary: Only 5 of the previous night's performers will move on to the Finals. Also featuring a surprise guest performance.

Summary: The contestants push themselves harder than ever before to advance to the finals.

Summary: Only 5 of the previous night's performers will move on to the Finals. Tonight, viewers will have one last chance to send their favorite performer to the next round. Also featuring a surprise guest performance by dance troupe Diavolo.

Summary: The top 10 acts compete one last time, live at The Dolby Theatre, for the chance to win one million dollars and be named the most talented act in America.

Summary: Host Tyra Banks reveals who America chose as the $1 million winner after guest performances from Kelly Clarkson, Shania Twain, Derek Hough, James Arthur, Kevin Nealon, Jeff Dunham, and Terry Fator.