Loved ones pay tribute to the beloved icon — who died of breast cancer on Monday at age 73 — in PEOPLE's latest cover story Rachel DeSantis is a senior writer on the music team at PEOPLE.

Mariah Carey shared special memories of her time spent with iconic actress Olivia Newton-John prior to the Grease icon's death from breast cancer on Monday Mariah Carey paid homage to Olivia ...

Songs include “Physical,” “Summer Nights,” and more. John Farnham and Olivia Newton-John - Two Strong Hearts is available to stream on pbs.org and the free PBS App, available on iPhone ...