She looks too pure to be pink.
4 seconds sound clip from the Grease (1978) movie soundboard.
You can hear this line at 00:12:59 in the Blu-ray version of the movie.
Quote context
[...]
- Well, I hope you'll be at cheerleader tryouts.
- We'll have so much fun and get to be lifelong friends.
- How do you like Sandy? Do you think we could let her in the Pink Ladies?
- She looks too pure to be pink.
- Please.
- One of my diamonds just fell in the macaroni.
- Hey, Kenickie, you want a piece of salami?
[...]