The legendary Australian actress and singer Olivia Newton-John died on Monday morning (8) at the

age of 73 at her ranch in Southern California (USA). The information of her death was given by her husband, John Easterling, as reported by TMZ.

The cause of death was not confirmed by Easterling, but according to a source connected to

TMZ, "after a 30-year journey against cancer, she lost her battle with metastatic breast cancer.

Olivia Newton-John's career began in 1971, but she gained worldwide notoriety

when she starred in the iconic film Grease alongside actor John Travolta in 1978.

In addition, Olivia also made her name in music with the hits Summer Nights, I Honestly Love You,

Physical, and Xanadú - the latter in collaboration with Jeff Lynne's Electric Light Orchestra.