Singer Olivia Newton-John, who soared to the top of the world's pop music charts in the 1970s and 1980s died on Monday at age 73 at her home in southern California.
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The death of the British-born, Australian-raised performer was announced on her Instagram account.
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John Travolta, who played Newton-John's love interest in "Grease," shared an emotional tribute on Instagram.
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"My dearest Olivia, you made all of our lives so much better," he wrote. "Your impact was incredible. I love you so much.," Travolta noted.
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Newton-John, a four-time Grammy winner, had disclosed several years ago that breast cancer had metastasized and spread to her back, forcing her to cancel performances.
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Twenty-five years earlier Newton-John had undergone a partial mastectomy and gone on to establish a cancer treatment-research facility in Australia.
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The entertainer began performing as a child and became a global superstar after moving to the United States.
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People lay flowers by the star of late actor Olivia Newton-John on the Hollywood Walk of Fame in Los Angeles, California.
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the recipient of various accolades, including a People's Choice Award
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