America's Got Talent - Season 21

Season 21 lives up to its lucky number with more Golden Buzzers in one night than ever before. It's an evening full of surprises, with a lineup ranging from not one but two dance crews that are not human, to a crossbow stunt duo taking the stage.

It's a magical night as auditions continue with a magician who returns for redemption in hopes of winning over the judges, social media stars bring their talents to the big stage and an opera singer duets with her dog.

Auditions heat up with a fire-shooting all-female quartet, a pair of comedic illusionists with a cardboard box and a chain reaction machine 12 days in the making that features the judges as props.

Auditions ramp up as a married mentalist duo captivates the crowd, returning contestants chase redemption and a world record and a parkour prodigy pushes boundaries like never before.

It's a quarter-millennium celebration as the judges and Terry look back at their favorite acts from America's biggest talent show, complete with a festive Fourth of July theme fit for the USA's 250th anniversary.

The judges are tougher than ever as auditions continue. Dueling magicians go head-to-head, a multigenerational tumbling team flips into the spotlight and a laser-fueled dance trio ignites the stage.

Auditions resume as more unforgettable oddballs and heartfelt hopefuls take the stage, from dancing dads and a death-defying aerialist to a series of original songs that divide the judges like never before.

It's the final night of auditions, and the judges must determine who will be moving on; a Howie lookalike takes the stage and a fluorescent singing act wows the judges with his original song.

The acts that are moving on to the live shows, along with those that were selected to appear in the brand-new Judges' Callback rounds, are revealed.

Simon Cowell and Mel B bring back their chosen acts to perform one final time as the first ever Judges' Callbacks decide who advances to the Live Shows; Simon welcomes Normani and Poo Bear, while Mel reunites with bandmate Emma Bunton.

Howie Mandel and Sofía Vergara pick their final acts to go to the live shows; Howie is joined by comedian Nikki Glaser at the iconic Laugh Factory in Hollywood, while Sofía welcomes Lele Pons and singer Sebastián Yatra.

It's time for the live shows as eleven acts take the stage with the Live Show Golden Buzzer sending one act directly to the finals; America can vote for their three favorite acts to advance.

One act advances straight to the finals with last night's Golden Buzzer; America's votes reveal which three acts from the previous night's show will move on and compete in the semi-finals.

Eleven acts take the stage in the second week of live quarterfinals; the Live Show Golden Buzzer sends one act directly to the finals and America begins the vote for their three favorite acts to advance.

One act advances straight to the finals with last night's Golden Buzzer; America's votes reveal which three acts from the second night of quarterfinals will move on and compete in the semi-finals.

Eleven acts take the stage in the third week of live quarterfinals; the Live Show Golden Buzzer sends one act directly to the finals and America begins the vote for their three favorite acts to advance.

One act advances straight to the finals with last night's Golden Buzzer; America's votes reveal which three acts from the third night of quarterfinals will move on and compete in the semi-finals.