And yet, if you have ever seen a bunch of tween girls singing along to “Summer Nights” at a bowling alley, you know the power of Grease. One thing is for sure. Once they read these 20 facts ...

Grease's Sandy wasn't meant to dance in the ... You'll note that Sandy's dancing in the iconic "Summer Nights" is almost non-existent... However, the producers had a hunch that Newton-John would ...

The soundtrack to the movie included hits that Newton ... Everyone loves "You're the One That I Want" and "Summer Nights," and rightly so — but no 'Grease' song was more iconically Olivia ...