She famously sported a head full of ringlets as Sandy in the 1978 movie, Grease. But in real life, Olivia Newton-John's hairdo of choice is the classic bob. In January 2018, the actress/singer attended the G'Day USA Black Tie Gala wearing the sweet style, which made her look so youthful it's hard to believe she was already pushing 70 that year. Speaking of youthful looks, she was asked in an interview with Eluxe Magazine how she manages to look decades younger than her age. "Firstly, I would like to thank my mother for the good genes! I also choose to see the positive in life and cultivate things that bring me joy and laughter." Incidentally, Olivia also worked with Sally Hershberger, who created Meg Ryan's iconic hairstyle (see above). In an interview with Flair, Sally recalled working at a salon that was "doing Olivia Newton-John’s hair and then she went on tour for Let’s Get Physical. Usually hairdressers don’t go on tour because they are too expensive, but Olivia took me. Suddenly, I was flying out in private jets — it was fun! It was through her that I met the photographer Herb Ritts. He was photographing her for a spread and I did the hair and he loved it."