Season 20 kicks off with a magician who recruits home viewers to participate, a danger act with a superhuman ability and Golden Buzzers that captivate the judges. Simon, Mel B, Sofia, Howie and Terry invite cameras behind the scenes.

Howie jokes that a group of clown magicians nearly gives him a heart attack. Siblings test their bonds and talent on the audition stage. Sofia and Mel battle it out to be the first to hit the button over a jaw-dropping Golden Buzzer.

The judges are shocked by how many Season 20 auditions bring new firsts to the AGT stage. From an aerialist duo flying under a water rig to the first robot-dog boy band, week three makes show history.

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.

Simon, Howie, Sofia and Mel reveal their most unforgettable Golden Buzzer moments - sharing never-before-heard stories, backstage drama and insights into the decisions that changed lives.

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.

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.

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.