Lifestyle Health Olivia Newton-John Gives Update on Stage 4 Diagnosis, Says She and Hoda Kotb are Breast Cancer 'Sisters' Olivia Newton-John and Hoda Kotb got emotional bonding over their shared battles with breast cancer By Vanessa Etienne Vanessa Etienne Twitter Vanessa Etienne is an Emerging Content Writer-Reporter for PEOPLE. People Editorial Guidelines Published on October 20, 2021 07:28 PM Share Tweet Pin Email Olivia Newton-John and Hoda Kotb are "sisters," bonding over their shared experience with cancer. On Wednesday, during an interview on Today, host Kotb, 57, talked to the 73-year-old singer about remaining optimistic throughout the years despite the obstacles she's faced. Newton-John was diagnosed with stage 4 metastatic breast cancer in 2017, nearly 30 years after her first diagnosis. Kotb opened up about her own experience with cancer, comparing herself to Newton-John and her ability to stay positive. The beloved Grease star was shocked to learn that Kotb herself had been treated for breast cancer 14 years ago. "I'm really sorry you went through that," Newton-John told Kotb, who held back tears in the interview. "I didn't know that about you. So you're well now, you're doing good?" Hoda Kotb and Her Sister Get Emotional Discussing Cancer Battle: 'That's Usually When You Need Your Sister the Most' "Yes, I'm doing good," Kotb assured. "By the way, I'm just going to pause for a second. Another wonderful thing about you is what you just did there. Thank you. Thank you for asking." Newton-John then quickly responded, "Oh, of course. We're sisters. Anyone that has gone on this journey with cancer, it's unknown destinations and surprises and turns." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Newton-John was first diagnosed in 1992 and overcame cancer again in 2013. In May 2017, she was told the cancer had metastasized and spread to her bones. However, the actress told reporters last year at G'Day USA in Beverly Hills, California, that she doesn't see it "as a battle." "I'm winning over it well and that's how I see it," she said. "I don't think about it a lot, to be honest. Denial is a really good thing and I'm getting stronger and better all the time! I'm doing well!" TODAY Olivia Newton-John Mourns the 'Sudden' Death of Her Cancer Nurse: 'My Heart Is Still in Shock' In February, Newton-John told PEOPLE that she had been "feeling great" — so much so that she and her husband, John Easterling, launched their Olivia Newton-John Foundation Fund in order to continue to support research into plant medicine for cancer. During Wednesday's interview, the singer explained that right now, she's "feeling pretty good," managing her pain with medical marijuana with the help of Easterling. "I have my days, I have my pains, but the cannabis that my husband grows for me has been such a huge part of my healing, and so I'm a really lucky person," she told Kotb.