Before she became an international movie star and her appearance in "Grease", Australian-raised Newton-John represented the UK in the 1974 Eurovision contest. She didn't manage to bring us a win, but she came pretty close, ultimately coming in fourth place that year. Four years later,she starred alongside John Travolta in the ever-famous musical. Sadly, Newton-John died in August 2022 at the age of 73, but she will always be hailed as an entertainment legend.