Olivia Newton-John, the Australian Passed away on Monday

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Olivia Newton-John was 73 years old.

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Olivia Newton-John revealed in September 2018 that she was treating cancer at the base of her spine.

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It was her third cancer diagnosis, following bouts with breast cancer in the early '90s and in 2017.

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Thanks to a string of country and soft-rock hits, Newton-John was already a popular singer by the late 1970s.

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Olivia Newton-John’s role opposite John Travolta in 1978's "Grease," arguably the most popular movie musical of all time, lifted her to a new level of stardom.

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"Dame Olivia Newton-John passed away peacefully at her Ranch in Southern California this morning, surrounded by family and friends. We ask that everyone please respect the family's privacy during this very difficult time," her husband, John Easterling

IMG Credit - Social Media

IMG Credit - Social Media

IMG Credit - Social Media

IMG Credit - Social Media

IMG Credit - Social Media

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