Little-Known Facts About the Legendary Olivia Newton-John That Will Shock You! You know her as the sweet-turned-sultry Sandy from Grease and the powerhouse behind "Physical," but the life of Olivia Newton-John was far more fascinating than her iconic roles suggest. Get ready to have your mind blown by these little-known secrets! Which of these facts about Olivia Newton-John surprised you the most? Tell me in the comments below! Like this video if you were a fan of Olivia's music or films! Subscr