Grease (1978) Director Randal Kleiser's film version of the hit Broadway musical about 1950s teen angst took the country by storm, inspiring a wave of nostalgia and receiving a slew of Golden Globe and Oscar nominations. In between flashily choreographed musical numbers, the film chronicles the romantic entanglements of a group of high school seniors, starting with a summer fling between greaser Danny (John Travolta) and good girl Sandy (Olivia Newton-John).
http://pongogirl2.hubpages.com/hub/1970s-Fashion - Bee Gees...I believe they had the top five song positions on the charts. It got to the point that they wrote songs for other singers. John Travolta sealed the whole disco look. I personally loved the disco era.