Ah, Grease. The movie musical that makes you want to grab a letter jacket and join the next graduating class of Rydell High so long as Olivia Newton John and John Travolta look-alikes grace the hallways. Not to mention it features one of the most requested karaoke songs ever. You know the one. Even though you roll yours eyes every time it comes on, by the beginning of the first chorus, you're screaming at the top of your lungs, "Ah willa willa willa uh, tell me more, tell me more!" We'll always love Grease for the great music, makeovers, Halloween costumes and, of course, eye candy (Hello, John Travolta!).