Australian actress Olivia Newton-John has been diagnosed with cancer for a third time.
The beloved star of the 1978 film Grease - who turns 70 this week - was first diagnosed with breast cancer in 1992 before undergoing a mastectomy.
When it recurred in 2013, she did not make her diagnosis public.
She reluctantly postponed her North American tour last year due to her battle with cancer.
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In a statement shared via her social media at the time, she said the back pain that initially caused her to postpone the first half of her tour was diagnosed as breast cancer.
Newton-John has decided to take a more natural approach to tackling the invasive tumour, she said in a recent interview she has been using medical marijuana as part of her treatment regime.
"I'm still treating it, and I'm treating it naturally and doing really well, yeah," she said, speaking to Channel 7's Sunday Night.
Newton-John hopes that cannabis oil - which she has been taking for the pain as she undergoes radiation treatment - will become legal in Australia.
"My dream is that, in Australia soon, it will be available to all the cancer patients and people going through cancer that causes pain," the Grammy Award-winner said.
Newton-John lives on a ranch in Santa Barbara, California, north of Los Angeles, where it's legal to grow a "certain amount of plants for your own medical purposes," she says.
"I'm very lucky to live in a state where it's legal."
Her husband, John Easterling, is a herbal remedy entrepreneur.