Remembering Olivia Newton-John: Watch ET's Favorite Moments With the Star

ET looks back at the life and career of Olivia Newton-John with some of our favorite moments with the late icon. After ‘Physical’ topped the charts in 1981, the triple-threat revealed she almost chose not to record the pop hit. Olivia recalled behind-the-scenes stories about her role as Sandy in ‘Grease,’ and shared her appreciation for cult hit ‘Xanadu.’ She also opened up about her breast cancer diagnosis and its life-altering impact. In one of her final interviews with ET, Olivia was joined by her daughter, Chloe, and they explained the backstory of their duet, ‘Window in the Wall.’