The cause of death of Olivia Newton-John has been revealed

The world mourned the loss of Olivia Newton-John on Monday, who was 73 years old. Grease icon, Newton-John, died of cancer, according to her husband, John Easterling, who did not specify the cause of death.

She has been battling breast cancer on and off for the past three decades since being diagnosed in 1992. In a statement following Newton-John's death, her husband revealed that she had battled breast cancer for decades.

In a statement posted on Facebook, he said, "Dame Olivia Newton-John passed away peacefully this morning at her Ranch in Southern California, surrounded by her family and friends. Please respect their privacy during this difficult time.

Throughout her journey with breast cancer, Olivia has been an example of triumph and hope, the statement said. With the Olivia Newton-John Foundation Fund, dedicated to researching plant medicine and cancer, she continues her healing inspiration and pioneering experience with plant medicine.

Any donations can be made in her memory to the Olivia Newton-John Foundation Fund instead of flowers. Newton-John's family did not provide an official cause of death, but it stands to reason that she probably died from cancer. Breast cancer was first diagnosed in 1992 for the singer. In 2013, it returned.

In May 2017, Newton-John revealed that her breast cancer had metastasized to her bones once again. As Newton-John battled cancer, she continued to work and share updates about her health. According to her interview with 60 Minutes in 2019, she feels lucky to still be alive despite her ongoing battle with the disease. It has just reinforced my gratitude," Newton-John told PEOPLE.

As long as we know we're gonna die at some point, we don't know when. When you're diagnosed with cancer or a frightening honest diagnosis, you're suddenly given the possibility of a time limit. In reality, you could end up hit by a truck tomorrow. Newton-John leaves behind her husband, Easterling, daughter Chloe Lattanzi, brother Toby Newton-John, and several nieces and nephews.