Host Terry Crews reveals who America has chosen as the Season 19 winner in the two-hour finale featuring special guest performers.

AGT celebrates 20 years of unforgettable talent, iconic viral moments and global impact. With a new mega-mix of performances and judge interviews, the special examines the show's legacy and how it redefined talent TV.

Contestants fight to leave an impression as auditions close with a very unexpected and messy plot twist; for the first time, the judges immediately reveal the top 44 acts they chose to compete in the live shows for the $1 million prize.

Simon Cowell, Heidi Klum, Howie Mandel and host Terry Crews return with new judge Sofia Vergara. Variety acts and contestants audition for the chance to win $1 million. The Golden Buzzer offers five acts the chance to go directly to the Live Shows.

The auditions continue as variety acts of all types and contestants of all ages audition for the chance to win $1 million. The Golden Buzzer is back, allowing a lucky act the chance to go directly to the Live Shows to compete for America's vote.

The auditions continue as variety acts of all types and contestants of all ages audition for the chance to win $1 million. The Golden Buzzer is back, allowing a lucky act the chance to go directly to the Live Shows to compete for America's vote.

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The auditions come to a close as a variety of acts and contestants of all ages audition for the chance to win $1 million.

The auditions come to an end and the judges must decide who will move on to the live shows.

Live from the Pasadena Civic Auditorium, 11 performers take the stage as judging is turned over to the American viewing audience to vote their favorite performers into the final round.

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A powerful magician takes control of the theater and Howie's personal phone. One act receives a surprise Golden Buzzer for a talent 45 years in the making.

A Kentucky truck driver is far from home as he braves the AGT stage. A roller-skating aerial act from Simon's past tries to earn his respect and "Vanderpump Rules" star Tom Sandoval auditions.

A danger-act sidekick goes solo after splitting with her longtime partner. A grandma debuts original music after her granddaughter surprises her with an audition.

Season 1 breakout child star Jessica Sanchez returns to audition 20 years later. A dancer performs ballet on top of someone's head, and an 83-year-old impresses Howie.

Howie gives the final golden buzzer of Season 20 to a scary good act; the day turns into one of the weirdest in the show's history, causing Simon to get the giggles.

Hopefuls perform for the judges.

The auditions begin with creator and executive producer Simon Cowell at the judges table alongside Heidi Klum, Mel B, Howie Mandel, and host, Nick Cannon. The Golden Buzzer is back and allows four lucky acts the chance to go directly to the live performance rounds at the Dolby Theatre in Los Angeles to compete for America's vote.

The auditions continue as variety acts of all types and contestants of all ages audition for the chance to win $1 million. The Golden Buzzer is back, allowing a lucky act the chance to go directly to the Live Shows to compete for America's vote.

The auditions continue with judges Simon Cowell, Howie Mandel, Sofia Vergara, guest judge Eric Stonestreet and host Terry Crews. The Golden Buzzer is still in play and could send a lucky act directly to the Live Shows to compete for America's vote.

The auditions continue with judges Simon Cowell, Howie Mandel, Sofia Vergara, guest judge Eric Stonestreet and host Terry Crews. The Golden Buzzer is still in play and could send a lucky act directly to the Live Shows to compete for America's vote.

Variety of acts and contestants of all ages audition for the chance to win the $1 million prize. The Golden Buzzer is back, allowing select lucky acts the chance to go directly to the live shows to compete for America's vote. Judges Simon Cowell, Heidi Klum, Howie Mandel, and Sofia Vergara are back, along with host Terry Crews.