VIDEO: Promo - Mash-Up Movie Music Competition and More on GLEE's 'Girls (and Boys) On Film' Episode!

In next week's GLEE, "Girls (and Boys) On Film", the kids of New Directions go head-to-head in a boys vs. Girls mash-up competition using the music of the movies. Santana's snooping results in two shocking discoveries. Plus, GLEE's 500th performance. Watch the promo for the March 7th episode on FOX below!

Glee is a musical comedy about a group of eager and ambitious students who strive to outshine their singing competition to win Nationals while navigating the cruel halls of McKinley High. Since its debut, Glee has become a bona fide cultural phenomenon, received prestigious honors including the Golden Globe and Peabody Award and singlehandedly made Glee clubs cool again.

In addition to the regular cast, Glee has featured guest appearances by a wide range of talented performers, including Gwyneth Paltrow (who won the 2011 Emmy Award for Outstanding Guest Actress in a Comedy Series), Carol Burnett, Kathy Griffin, Cheyenne Jackson, John Stamos, Britney Spears, Kristin Chenoweth, Idina Menzel, Jonathan Groff, Molly Shannon, Olivia Newton-John and Neil Patrick Harris, who won a 2010 Emmy Award for Outstanding Guest Actor in a Comedy Series for his work on the show.