GLEE: The glee club performs a musical in the "Glease" episode of GLEE airing Thursday, Nov. 15 (9:00-10:00 PM ET/PT) on FOX. Pictured L-R: Jacob Artist, Jenna Ushkowitz, Blake Jenner, Melissa Benoist, Vanessa Lengies, Becca Tobin and Samuel Lar Photo

From: Photo Flash: First Look at GLEE's 'Glease' Episode!

On this week's episode of GLEE, titled, 'Glease,' Rachel and Kurt pay a visit to Lima as the glee club launches its production of "Grease." Meanwhile, Cassandra July returns to shake things up in Rachel's life, and Santana comes back to lend a helping hand. Check out photos from the episode below!