Harry Shum Jr., Amber Riley, Damian McGinty, Darren Criss, Mark Salling, Naya Rivera, Heather Morris, Cory Monteith, Chris Colfer, Lea Michele, Jenna Ushkowitz, Dianna Agron, Kevin McHale, Vanessa Lengies, Idina Menzel and Matthew Morrison Photo

From: Photo Flash: GLEE Celebrates 300 Musical Performances!

From the anthem hit 'Don't Stop Believin' to the iconic rendition of 'Vogue' to the pop phenomenon 'Teenage Dream,' GLEE has sold more than 36 million songs. Now GLEE has reached another impressive milestone: 300 musical performances. The 300th performance, a momentous mash-up of 'Rumor Has It - Someone Like You,' will debut in the upcoming all-new episode of GLEE airing Tuesday, Nov. 15 (8:00-9:01 PM ET/PT) on FOX.