John Travolta & Olivia Newton-John - You Are The One That I Want [ Grease, 1978]

"You Are The One That I Want" from Grease soundtrack, performed by John Travolta and Olivia Newton-John.
Grease is a 1978 American musical film directed by Randal Kleiser and based on Warren Casey's and Jim Jacobs's musical, of the same name about two lovers in a 1950s high school. The film stars John Travolta, Olivia Newton-John, Stockard Channing, and Jeff Conaway. It was successful both critically and at the box office; its soundtrack album ended 1978 as the second-best selling album of the year in the United States.
Movie plot: in 1959, during their summer vacation, local boy Danny Zuko (John Travolta) and Australian holiday-maker Sandy Olsson (Olivia Newton-John), meet at the beach and begin to fall in love. When the summer comes to an end, Sandy, who is returning home, frets that they may never meet again. Danny tells her that their love is "only the beginning."