America's Got Talent - Season 20

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 performance and judge interviews, the special examines the show's legacy and how it redefined talent.

Eleven acts take the stage and a Live Show Golden Buzzer will send one act directly to the finals. America can vote for their three favorite acts to advance to the semi-finals by using the "AGT" App or going to NBC.com.

America's votes will reveal which three acts from the previous night's show will move on to the semi-finals One act advances that got sent straight to the finals last night with the new Live Show Golden Buzzer.