LOS ANGELES — Australian singer and actress Olivia Newton-John has battled cancer three separate times since 1992, with the September announcement that doctors had discovered a tumor at the base of her spine the most recent.

Tabloid outlets began circulating reports that her that Newton-John's "bodily functions [appeared] to be shutting down" and that she was "clinging to life" (which Radar Online reported last week), and despite protestations from her management team and later her niece Tottie Goldsmith — who first called the reports "a sick rumor" and then posted a recent photo on Instagram of herself and Newton-John saying she is "in good health" — the reports persisted.

Olivia Newton-John during the annual Wellness Walk and Research Run in Melbourne, Australia, on Sept. 16, 2018 Scott Barbour / Getty Images file

But late Wednesday, the 70-year-old singer and "Grease" star confronted the reports herself, posting a video on her social media pages in which she says, with good humor that reports of her imminent demise have been "greatly exaggerated."

"Happy New Year everyone. This is Olivia Newton-John. The rumors of my death have been greatly exaggerated," she laughs, "to quote a very famous quote."

"I'm doing great. I want to wish all of you the happiest, healthiest 2019 possible," she continues. "Thank you all for your wonderful love and support for me and my Olivia Newton-John Wellness Center in Melbourne, Australia. Thank you so much and happy new year."