Olivia Newton John, John Travolta's 'Grease' Style Moments [PHOTOS] Dress The Part: Olivia Newton John as Sandy From Grease Over The Moon Buy Lipsy Olive Green Snake Print Long Sleeve Ruffle Maxi Dress from Next USA Olivia Newton John almost walked away from Grease before filming even began and the reason was simple: she didn't believe she could be Sandy. She was 28, a global singing star, adored for This sweet, white 50s style gown with matching capelet was first worn by Olivia Newton John as Sandy in the classic film in 1978. The dress and capelet both made their way