She’s the subject of Lifetime’s newest biopic, which will tell the story of Olivia Newton-John‘s professional career as well as her health woes and cancer battle. Airing tonight, Saturday, February 16, the biographical film, titled Olivia Newton-John: Hopelessly Devoted to You, will dive into the world of the four-time Grammy award winner.

“I was very anxious about it,” the 70-year-old star said of being the subject of the biopic in Closer Weekly’s latest issue, on newsstands now. “But any funds from the movie I want to funnel to my hospital [the Olivia Newton-John Cancer Wellness & Research Centre in Australia], so that made it OK for me.”

Getty Images

The movie dramatizes Olivia’s battles with breast cancer as well as her triumphs in Grease and with pop hits like “Let Me Be There” and “Physical.” And the lucky lady who gets the portray Olivia is Australian-born singer and actress Delta Goodrem. “I can’t think of anyone better to play me,” Olivia gushed. “I respect Delta as a person and an artist.” And the feeling is mutual! “It’s been incredible to have Olivia as my friend,” Delta, 34, said.

The news of the upcoming biopic comes in the wake of Olivia’s third and most recent cancer battle. “My dream is to see an end to cancer in my lifetime,” the iconic actress previously wrote on Instagram and has said, “I’m winning for the third time. I feel great and positive.” After her first breast cancer diagnosis back in 1992, Olivia had a mastectomy and received treatment. Then, in 2013, she underwent more therapy after the disease spread to her shoulder.

Olivia Newton John and Delta Goodrem
Getty Images

Olivia seemed to be in the clear until she began suffering severe back pain while on tour last year. “I would limp backstage and gingerly lie down on my dressing-room floor, crying in agony,” she wrote in her new book, Don’t Stop Believin’. An MRI revealed a recurrence of her cancer, which had metastasized into her lower back. Since then, Olivia has had both good days and bad days, however, she is optimistic about her progress. “I believe I will win over it, and that’s my goal,” Olivia previously said on Australia’s Sunday Night.

The Two of a Kind actress has been treated with radiation and now uses herbal therapies, including cannabis oil, to manage her pain. “Cancer is something I will need to stay on top of. It’s up to me to manage my stress, to eat and rest well and to continue with the healing protocols,” she wrote. “I truly believe this will be my final round with cancer. I will go on with my life.”

Watch Olivia’s biopic tonight, Saturday, February 16 at 8 p.m. EST on Lifetime!