Dame Olivia Newton-John was a British-Australian singer and actress recognized as one of the best-selling music artists in history, with over 100 million records sold. She rose to global fame with her starring role in the film Grease in 1978, contributing hit duets like "You're the One That I Want" and "Summer Nights." Her solo career produced enduring hits such as "I Honestly Love You," "Physical," and "Magic." Newton-John earned numerous awards, including four Grammys, and secured multiple chart-topping singles and albums. Beyond music and film, she was a passionate advocate for cancer research, founding the Olivia Newton-John Cancer Wellness and Research Centre in Melbourne, and was active in supporting environmental and animal rights causes. She was honored with titles including Dame Commander of the Order of the British Empire.