John Travolta Shares Tribute to 'Grease' Co-Star Olivia Newton-John: 'You Made Our Lives So Much Better'

Olivia Newton-John Dead at 73: Look Back at the Grease Star's Life in Pictures

Grease Icon Olivia Newton-John Dead At 73

John Travolta Mourns the Death of ‘Dearest’ Olivia Newton-John: ‘Yours From the Moment I Saw You’