Amazon.com: Fun Costumes Adult Grease Prom Sandy Halloween Costume, Ideal for Themed Parties, Grease Themed Costumes, X Small, White : Clothing, Shoes & Jewelry See Olivia Newton John's Best Outfits as Sandy in "Grease" PS Fashion NWT JAX Black And Brick Red Yellow Green Brown Mid Sheath Dress Size 10 Womens eBay Guinea Bissau Off Shoulder Short Dress Red Green Yellow Stripe Design and Black Star by African Pride When Olivia Newton John was cast as Sandy in "Grease" (1978), her character's background had to be changed to accommodate Newton John's background. In the original Broadway musical, Sandy was an all American girl and