27 Best Grease Halloween Costume Ideas for 2025 2004 Grease Yellow Dress Sandy Barbie Sell4Value Amazon.com: Grease Summer Nights Sandy Costume, Child Medium 8 10, 1 Pc : Clothing, Shoes & Jewelry This sweet yellow party dress was first seen in the 1978 Grease, where it was worn by actress Didi Conn as Frenchy. After that, @recycledmoviecostumes on Tumblr Sandy Olsson Grease Wiki Fandom When Olivia Newton John was cast as Sandy in "Grease" (1978), her character's background had to be changed to accommodate the actress' own background. In the original Broadway musical, Sandy was an all American