The 68-year-old actress has today announced that she is postponing her upcoming tour after being diagnosed with breast cancer.

Olivia Newton-John’s management shared the news on her Facebook page today saying: “Olivia is reluctantly postponing her June U.S. and Canadian concert tour dates. "The back pain that initially caused her to postpone the first half of her concert tour, has turned out to be breast cancer that has metastasized to the sacrum. “In addition to natural wellness therapies, Olivia will complete a short course of photon radiation therapy and is confident she will be back later in the year, better than ever, to celebrate her shows.” The Grease star was previously diagnosed with and beat the disease back in 1992. The news has left fans shocked, but Olivia reassured them that she is going to fight as she did over 20 years ago. “I decided on my direction of therapies after consultation with my doctors and natural therapists and the medical team at my Olivia Newton-John Cancer Wellness and Research Centre in Melbourne, Australia.” The post also went on to say that Olivia would not be doing any interviews in the near-future. "There will be no interview requests accepted at this time as Olivia’s focus is on her treatment and healing. Ticket buyers for the upcoming concerts should contact venues directly about refunds."