The winner is revealed; Susan Boyle performs the Jagger/Richards song "Wild Horses"; Shakira, Leona Lewis, Rascal Flatts and Cirque du Soleil are scheduled to perform.

The remaining acts perform one last time.

Highlights from the performances of the semifinalists.

Four more acts are passed on to the final rounds; a performance by the Broadway cast of "Jersey Boys."

Ten semifinalists perform.

Highlights from the performances of 10 of the top 20 contestants.

Four acts advance to the finals; Kermit the Frog and Miss Piggy perform; David Hasselhoff performs.

The first 10 acts from the top 20 perform.

The final group of 10 from the top 40 perform.