Olivia Newton-John (1948–2022) was a British-born, Australian-raised singer and actress. She gained worldwide popularity in the 1970s and 1980s with hits like "Sweet Breeze" and "Physical," and won four Grammy Awards. She is a pop icon, also known for her starring role in the film "Grease."AO—Order of Australia.OBE—Officer of the Most Excellent Order of the British Empire.