Olivia Newton-John, who would have celebrated her 74th birthday today (September 26), became a household name for her role as Sandy Olsson in popular 1970s film Grease, alongside heartthrob John Travolta.
Before she landed the role as Sandy, Olivia had numerous UK number one singles, including If Not For You, and she also competed in the Eurovision Song Contest for the UK in 1974.
After the success of Box Office hit Grease, she went on to star in Xanadu and Two Of A Kind.