The iconic leather jacket Olivia Newton-John wore in ... It signaled her transformation as a demure cheerleader to a sexy greaser girl to woo John Travolta’s character Danny.

Danny's the leader of the T-Birds, a group of black leather jacket-wearing greasers while Sandy hangs with the Pink Ladies, a group of pink-wearing girls led by Rizzo (Stockard Channing).

Danny's the leader of the T-Birds, a group of black leather jacket-wearing greasers while Sandy hangs with the Pink Ladies, a group of pink-wearing girls led by Rizzo (Stockard Channing).