Lights, Camera, Fashion: Grease HTF Magazine Frenchy at the Prom Little Shop of Horrors Costumery & Pop Culture Emporium Copy of Olivia Newton John White Dress Iconic Prom Dress Grease Fashio Hoprom 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 Carly Rae Jepsen Didi Conn Frenchy Grease The Actress Who Played the Original Frenchy Gave Carly Rae Jepsen Her 'Grease' Costume Teen Vogue