Grease was written by Barry Gibb of the Bee Gees and recorded by Frankie Valli as the title song for the 1978 film Grease, starring John Travolta and Olivia Newton-John. Unlike the 1950s style numbers in the musical, this track used a contemporary disco sound and became a major hit in its own right. The opening section circulated online as a short soundboard clip because its horn led intro works without context. Creators still use it for entrances, reveals and nostalgic edits that need instant seventies energy.