The nineteenth episode of Season 14, and the three hundred and thirty-fourth episode of America's Got Talent overall, aired on September 10, 2019. It was the second of two Semifinals performance episodes and took place in the Dolby Theatre. 11 acts performed for 5 spots in the Finals.
During Lukas & Falco's performance, Falco stepped on Howie Mandel's buzzer. However, Howie later admitted that he had intended to buzz the act regardless.
This is the first time Howie's buzzer was pressed during the semifinal round since Episode 527.