Olivia Newton-John and John Travolta dancing in the 1978 film adaptation of the Broadway musical … [+] ‘Grease’ (Photo by Paramount Pictures/Fotos International/Getty Images) Getty I...
Olivia Newton-John and John Travolta dancing in the 1978 film adaptation of the Broadway musical … [+] ‘Grease’ (Photo by Paramount Pictures/Fotos International/Getty Images) Getty I...