Episodes
Audition Show #1 New York, Chicago, Seattle
5.0The talent show's fourth season opens with preliminary auditions taped in theaters across the country. Nick Cannon is the new host, replacing Jerry Springer. David Hasselhoff, Sharon Osbourne and Piers Morgan return as the judges.
85 min
Audition Show #2 Seattle(2), Miami
4.0The judges travel to Miami for the first time in AGT audition history, in hopes of finding the next million-dollar act.
85 min
Audition Show #3 New York(2), Chicago(2)
5.0The coast-to-coast auditions continue as the judges search for the next million-dollar act.
85 min
Audition Show #4 Houston, Miami(2)
4.0The judges continue their search for the next million dollar act.
85 min
Audition Show #5 Los Angeles
4.0The judges continue their coast-to-coast search for the next big thing.
85 min
Audition Show #6 Houston(2)
4.0The judges continue their coast-to-coast search for the next big thing.
85 min
Audition Show #7 New York(3)
4.0Auditions are now being held in New York City. Will the judges like what they see?
85 min
Audition Show #8 Seattle(3)
3.0Performance showcases are featured in the eighth audition installment.
85 min
MySpace.com audition show
3.0Performance showcases are featured in the ninth audition installment.
85 min
Final audition show
3.0Performance showcases are featured in the 10th and final audition installment.
85 min
Vegas Verdicts (1)
5.0In the first "Vegas Verdicts" edition, winning acts from the preliminary auditions advance to Las Vegas in the hope of securing a coveted position in the Top 40, with the judges debating their show-biz fate.
85 min
Vegas Verdicts (2)
4.0In the second "Vegas Verdicts" installment, the judges debate the fates of the hopeful contestants to determine the Top 40 acts.
85 min
Live Performances (1)
4.0Ten of the Top 40 acts showcase their talents in the first performance edition.
85 min
Results (1)
5.0The first five winning acts are selected for the Top 20 in a results edition. Mariah Carey performs, as does ventriloquist and Season 2 winner Terry Fator.
85 min
Live Performances (2)
5.0Ten acts from the Top 40 take to the stage in the second performance installment.
85 min
Results (2)
5.0Five winning acts are selected to the coveted Top 20 in a results edition. Electro hip-hop duo LMFAO and comic illusionists Penn and Teller perform.
85 min
Live Performances (3)
5.0The third performance episode showcases 10 acts from the Top 40.
85 min
Results (3)
5.0Five acts win a slot in the sought-after Top 20 in a results show. Daughtry and Ashley Tisdale perform.
85 min
4th Ten of Top 40 Perform (live)
5.0The Top 40 acts have been narrowed to 10 and are featured in the fourth performance show.
85 min
4th Results Show: Final 5 move on to Top 20 (live)
5.0Five final acts win a position in the Top 20 in a results show.
85 min
Semifinals, Group 1
5.0The semifinals kick off with the first 10 acts from the Top 20 taking the stage.
85 min
Semifinals, Group 1 Results
5.0Four acts are selected to advance to the finals in a results edition. David Hasselhoff performs, as do the Muppets' Kermit the Frog and Miss Piggy.
85 min
Semifinals, Group 2
5.0Ten semifinal acts from the Top 20 perform.
85 min
Semifinals, Group 2 Results
5.0A results edition reveals five winning acts. Members of the stage show "Jersey Boys"---a musical depicting the life of the pop group Frankie Valli and the Four Seasons---perform a medley of tunes from the show.
85 min
Final Performances
5.0The final performance episode features the 10 finalists in showcases.
85 min
Final Results
5.0The winning act is revealed in the Season 4 finale. The victor scores $1 million. Performers include "Britain's Got Talent" phenom Susan Boyle; pop songstress Shakira; English singer Leona Lewis; country's Rascal Flatts; and Cirque du Soleil.
85 min