Dame Olivia Newton-John AC DBE was a British-Australian singer, songwriter, actress and activist. She was a four-time Grammy Award winner whose music career included five number-one hits and another ten top-ten hits on the Billboard Hot 100. Most people probably know her for her spotlight-stealing appearance in the 1978 musical, Grease alongside John Travolta. Her incredible performance as the innocent sweetheart teen Sandra Dee and her transformation into a powerful, sexy woman is one of the most iconic transformations on screen EVER!