Queen's Brian May said: "We’re very happy to be able to do our bit to help Australia to fight back against the terrible fires."
The newly-announced shows are the final dates to be added to the 'Rhapsody' tour and the last opportunity to see the band perform in the UK in 2020.
Queen singer Adam Lambert announced his new non-profit advocacy group, Feel Something Foundation, whose mission is to “support LGBTQ+ organisations”.
The star-studded show, to help raise funds for the country's bushfire relief efforts, will also feature Alice Cooper, k.d lang and many more.
The band's European tour will launch in Italy on 24 May, with its final stop in Madrid with two shows on 7 & 8 July.
Metallica reportedly sold a colossal 1.7 million tickets around the world during the 12-month time frame that determined the chart's rankings.
The documentary behind-the-scenes activities between Lambert and original Queen members Brian May and Roger Taylor following Lambert’s 'American Idol debut' in 2009.
Brian May said: Global Citizen is an organization which has already moved mountains. We hope this concert will be the beginning of a new era in which all creatures on Earth will...
Queen’s Brian May said, “Like Live Aid in 1985, we believe this concert will be a milestone."
Also headlining are Pharrell Williams, Alicia Keys, OneRepublic, H.E.R. and Carole King.
The band will on the road in the US throughout July and August with their ‘Rhapsody’ tour dates concluding on the 23 August at the Spectrum Center in Charlotte, North Carolina.
The original version of the song is piano-based and features markedly different lyrics.
The Queen frontman performed ‘Bohemian Rhapsody’ during his own audition for the show in 2009.
The politically-charged new song is the star's first solo work in more than five years.
'A Star Is Born' now has the most weeks at No. 1 for a live-action film soundtrack since Disney Channel’s TV movie 'High School Musical 2' in 2007.