[1] On 21 October 2020, Seven Network announced at their annual upfronts that they will be reviving the series, originally slated for 2022.
Marcia Hines, who was a judge for all of the seven seasons of Australian Idol's original run, filled in for Meghan Trainor during the Top 50 rounds.
The other singers that progressed to the Top 12 were announced by the judges at the end of each round.
During each round of the live performances, each contestant sings a song with a given theme.
The judges opted not to put any singer directly into the Grand Finale, meaning that all results would be decided by the public vote.
After each pair of contestants had sung, the results were announced for those two singers: one eliminated, and one was put through to the Grand Finale, three in total.