Olivia Newton-John Dead at 73
Chart-topping singer and "Grease" star Olivia Newton-John has died at age 73.
Olivia Newton-John
Olivia Newton-John Gives Update on Stage 4 Cancer Battle: ‘I Have My Days’
Olivia Newton-John has been battling Stage 4 metastatic breast cancer for years, and in a new interview on the 'Today' show, she says she's "feeling pretty good" due to medical cannabis.