New Directions rehearse "You're the One That I Want" - a song which originated in the film version of 'Grease' and not the earlier stage production.
Terri says, "Dr. Phil said that people could change."
Ken Tanaka says that last year a football player shaved another player's eyebrows just because he watched the show.
Subject of a $10,000 question presented by Jane Lynch
When Kurt, Rachel, Mercedes, Artie and Tina are performing "Sit Down, You're Rocking the Boat", Mr. Shue remember their first performance of the song