Will (Matthew Morrison, L) dreams of performing 'Make 'Em Laugh' Photo

From: Photo Flash:Matthew Morrison Performs 'Make 'Em Laugh' on 'The Substitute'

On GLEE's 'The Substitute' Season 2 Episode 7 - When Mr. Schuester gets sick, a substitute teacher (guest star Paltrow) takes over his Spanish class and the glee club, and winds up winning over the whole New Directions clan. Meanwhile, when Sue fills in for Principal Figgins as McKinley's top dog, she tries to flex her power on campus in the all-new 'The Substitute' episode of GLEE airing Tuesday, Nov. 16 (8:00-9:01 PM ET/PT) on FOX.