Episode 411

The eleventh episode of Season 4, and the fifty-eighth episode of America's Got Talent overall, aired on July 28, 2009. It was the first of two Vegas Round episodes and took place in Las Vegas. 25 acts from this episode were eliminated immediately at the Las Vegas airport. 17 acts from this episode proceeded to the Top 40 Quarterfinals, and 17 more acts were eliminated.

Process
Upon arrival at the Las Vegas airport, all the acts that had been passed through the auditions were divided into four groups. Three of the four groups would enter Las Vegas and await further verdicts. The fourth group consisted of 25 acts who were eliminated automatically at the airport.

Afterwards, acts were brought before the judges and informed whether they would perform live in the Top 40 Quarterfinals (Unlike other seasons, a majority of the acts did not perform in the Vegas Round). The judges selected three dance groups: Breaksk8, Destined 2 Be, and U4RIA Dance Crew for a challenge. They were asked to prepare a dance routine in 12 hours. Each group would perform to the same piece of music. After watching the performances, the judges would decide which dance groups, if any, would advance.

Unconfirmed
The following acts performed in the Vegas Round, but whether or not they were eliminated before the Top 60 or were included in the Top 60 was never revealed. Nevertheless, any such act did not progress to the live performance shows.