Photo Flash: Sneak Peek at Adam Lambert's GLEE Debut!
The episode finds the students of McKinley High trying to discover themselves as artists and singers. Featured songs include hit singles from music's hottest albums, Lady Gaga's "Applause" and Katy Perry's "Roar."
Also, Sue and Will are back in action, waging all-out war on each other while Kurt and Santana hold auditions and are blown away by Lambert's performance.
Photo Credit: Adam Rose/FOX