GLEE: Puck (Mark Salling, L), Artie (Kevin McHale, C) and Sam (guest star, Chord Overstreet, R) perform in the "Prom Queen" episode of GLEE airing Tuesday, May 10 (8:00-9:01 PM ET/PT) on FOX. ©2011 Fox Broadcasting Co. CR: Adam Rose/FOX Photo

From: Photo Flash: First Look at GLEE's 'Prom Queen'

Two weeks from tomorrow, Jonathan Groff returns to FOX's hit series GLEE in 'Prom Queen.' In the May 10 episode, Jesse St. James tries to win back Rachel, and the competition of prom king and queen gets serious. Catch a sneak peek of the episode below!