John Travolta, Stockard Channing, & More ‘Grease’ Stars Mourn Olivia Newton-John After Her Death

Australian stars pay heartfelt tribute to Olivia Newton-John as the Grease star passes away

Olivia Newton-John and John Easterling: a Timeline of Their Relationship

Richard Wilkins comforted by Karl Stefanovic as he bursts into tears over Olivia Newton-John's death