"Prom Queen" is the twentieth episode of the second season of the American musical television series Glee, and the forty-second overall. It aired May 10, 2011 on Fox in the United States. The episode was written by series creator Ian Brennan, directed by Eric Stoltz, and featured the return of guest star Jonathan Groff. In "Prom Queen", the McKinley High School glee club New Directions is tapped to provide the music for the school's junior prom. The episode shows the myriad dramas surrounding a high school prom, with the high-stakes race for prom king and queen that involves five members of the glee club, students scrambling to find dates and outfits, and the delights and disappointments of the prom itself.