John Farnham, Olivia Newton-John and Brian May perform epic rendition of 'You’re The Voice'

On Sunday night, some of the biggest names in Australian music joined forces 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, concert-goers were moved by national treasure John Farnham performance, who closed the show alongside Olivia Newton-John and Queen guitarist Brian May.

Belting out his iconic 1986 track 'You're The Voice,' the 70-year-old powerhouse singer 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.

Joining the trio at the gig was also Icehouse, Alice Cooper, k.d lang, Delta Goodrem, Michael Bublé, Tina Arena, Guy Sebastian and many more.

The sold-out concert raised over $9 million.

The fires, fueled by high winds and scorching temperatures, have ravaged more than 25 million acres and killed 28 people since October.

NOTE: SKIP FORWARD TO THE 19 MINUTE, 30 SECOND MARK FOR 'YOU'RE THE VOICE.'