[2] Jason Dundas replaced Luke Jacobz as host; with the judging panel consisting of Mel B, Guy Sebastian, Iggy Azalea and Adam Lambert.

[4] On 11 October 2016, shortly before the three-seat challenge, former judge Mel B was announced as the "underdog judge" also to replace Minogue, after months of rumours, whereby three acts who failed to secure a seat in this challenge can be recruited by her for inclusion in the "underdogs" category.

[5] On 24 November 2015, Luke Jacobz announced on his Twitter account that he would not be returning as the host for the eighth season in 2016.

[citation needed] Open auditions in front of the show's producers took place in 17 cities and ran from 18 April to 21 May 2016.

Initially, ten live shows were planned, but they were cut down to five, apparently due to scheduling conflicts.

[7] The live shows concluded on 21 November 2016, where this would be the final episode of The X Factor to be aired, as the programme was cancelled in January 2017 due to declining ratings.

Ratings data is from OzTAM and represents the average viewership from the 5 largest Australian metropolitan centres (Sydney, Melbourne, Brisbane, Perth and Adelaide).