Watch 'Glee' take on 'Grease' in this video from tonight's "Glease" episode.
Watch the Glee "Glease" episode sneak peek video here, featuring a look at the McKinley High School production of Grease.
You've got "Greased Lightning," "You're the One That I Want," "Look at Me I'm Sandra Dee," and "Beauty School Drop Out" snippets to check out before the episode airs.
And holy cow, does Sugar ever look like the perfect Frenchie!
Plus, check out the Glee promo for tonight's episode--is Finn taking over the glee club while Mr. Schue is away?
What Grease song are you most excited about?