WATCH: Olivia Newton-John's incredible last ever live performance before her death

In 2020 Olivia Newton-John joined some of the biggest names in Australian music for a one-off benefit concert to raise money for Australian wildfire relief.

As an estimated 75,000 people gathered in Sydney's ANZ Stadium for the star-studded event, little did concert-goers know it would be the last time the national treasure ever performed live.

The Grease actress - who was battling cancer at the time - closed the show alongside John Farnham and Queen guitarist Brian May.

Belting out Farnham's iconic 1986 track 'You're The Voice,' the famed philanthropist was also joined by Indigenous artist Mitch Tambo, who sang the song's second verse in Gamilaraay as the sounds of a didgeridoo filled the stadium.

The sold-out concert - which took place on Sunday 16 February 2020, just weeks before the coronavirus epidemic would cause Australia to close its borders on March 19 - raised over $9 million.

Newton-John spent her last days surrounded by friends and family at her Californian home in the San Ynez Valley, before she passed away on Monday 8 August, 2022.

NOTE: SKIP FORWARD TO THE 10-MINUTE, 50-SECOND MARK FOR OLIVIA'S PERFORMANCE, OR THE 19-MINUTE, 30-SECOND MARK FOR 'YOU'RE THE VOICE.'