The Grease star will be remembered at a free, ticketed service to be held on Sunday, February 26, featuring tributes from family and friends.

The event at Hamer Hall, at Arts Centre Melbourne, will include a performance from singer Delta Goodrem, who played Newton-John in a 2018 miniseries.

Victorian Premier Daniel Andrews hailed Newton-John as a hero for her contributions to the arts, philanthropy and raising cancer awareness.

"Dame Olivia Newton-John was an inspiration to many around the world,'' he said.

"Her work in cancer research and treatment saved lives and changed lives, and her music was the soundtrack to a generation.

"We know Victorians are eager to celebrate the life of a driving force in medical research and an icon of film and music, with a service befitting her international acclaim."

Newton-John, best known for playing Sandy in the 1978 hit film Grease opposite John Travolta, died on August 8 at her Ranch in southern California.

She battled breast cancer three times after first being diagnosed in 1992 and underwent chemotherapy, a mastectomy and breast reconstruction surgery.

Her health battle ultimately led her to establish the Olivia Newton-John Foundation to fund cancer research.

She also founded the Olivia Newton-John Cancer Wellness and Research Centre in Melbourne, which supports people living with the disease.

She is survived by her husband John Easterling and only daughter Chloe Lattanzi.

Australian Associated Press