Channel 10's Angela Bishop shares touching tribute to her friend Olivia Newton-John

Olivia Newton-John's heartbreak when husband Matt Lattanzi ran off with babysitter Cindy Jessup

Delta Goodrem reveals 'kindred spirit' Olivia Newton-John convinced her to star in Grease TV series

Inside the $6.7m southern Californian ranch where Olivia Newton-John spent her final days