The first of four semifinal rounds is featured. Two acts will move on to the finals---one chosen by celebrity judges David Hasselhoff, Brandy and Piers Morgan; the other by viewers. Regis Philbin hosts.

Two more finalist spots are up for grabs as performers compete in the third of four semifinal rounds. Brandy, David Hasselhoff and Piers Morgan are the judges. Regis Philbin hosts.

Third-round voting results are revealed.

The fourth and final semifinal round. David Hasselhoff, Brandy and Piers Morgan serve as judges. Regis Philbin hosts.

Fourth-round voting results are revealed. Judges Brandy, David Hasselhoff and Piers Morgan offer their opinions on the act chosen by viewers to go to the finals. Also: the Hoff sings his new single, “Jump in My Car”; a performance from Cirque Du Soleil's “Zumanity”; and comedian Tom Green attempts to ride a skateboard through a ring of fire.

A wild-card competition features 10 deserving but overlooked acts from the semifinals competing for two additional spots in next week's $1 million finale. Among the performers getting a second chance are: Nathan Burton; Leonid the Magnificent; All That; Natasha Le; Corina Brouder; Jessica Sanchez; Bobby Badfingers; N'Versity; Quick Change; and Alexis Jordan. Regis Philbin hosts.

Host Regis Philbin announces the viewer-selected winner of the wild-card round. Celebrity judges David Hasselhoff, Brandy and Piers Morgan offer their opinions. Also: Penn and Teller perform their magic act.

Season 1 of the talent show concludes with host Regis Philbin announcing which one of the 10 finalists viewers chose to win the $1 million prize. Judges Piers Morgan, Brandy and David Hasselhoff offer their opinions on the top act. Blue Man Group and singing duo Aly and AJ perform.

The Top 10 contestants showcase their talents in the third week of performances.

The Top 10 acts are trimmed down to eight.

The winning act is revealed in the Season 5 finale, which features performances by an array of Las Vegas and Hollywood stars.

Auditions in St. Louis.

Auditions are held in New York City.

Acts compete for a position in the Top 48. From Las Vegas.

Four of the top 12 acts advance to the next round.

12 of the top 48 acts perform for the judges.

12 of the 48 acts perform for the judges.

The top 6 acts perform for the judges.

Twelve acts perform for the judges in hope of advancing to the next round and getting one step closer to the $1 million prize.

With only 24 acts left, competition for the million-dollar prize heats up.

The last 12 semifinalists compete for the million-dollar prize.

Six acts advance to the next level.

The final six acts are revealed.

The final six acts perform one final time.

In a live, star-studded season finale, the Top 6 learn who is the winner of the million-dollar prize and a headlining act in Las Vegas.