The successful auditionees chosen by the producers were then invited back to the last set of auditions that took place in front of the judges and a live studio audience in May 2012.

After the auditions was super bootcamp, where all four judges worked together and collectively chose 24 acts, including six from each of the four categories: Boys,[6] Girls,[6] Over 25s and Groups.

Following super bootcamp was the home visits stage, where each of the judges reduced their six acts to three, with help from guest mentors Alicia Keys, Kesha, One Direction and Usher.

[7] The fourth season sparked controversy when contestant Josh Brookes was disqualified from The X Factor for behaving "in an inappropriate manner" on social media.

[9] The grand final decider was watched by 1.92 million people, making it the highest rated television episode of the season.

[12] The successful auditionees chosen by the producers were then invited back to the last set of auditions that took place in front of the judges and a live studio audience.

The finalists recorded a cover of Carly Rae Jepsen's "Call Me Maybe" as a charity single in aid of Sony Foundation's You Can program which aims "to build specialised and age-appropriate youth cancer centres across Australia.

"[72] The single was made available for download via the iTunes Store on 18 September 2012,[73] after all twelve finalists performed the song on the first live results show that same day.

[72] On 16 November 2012, the Herald Sun reported that the winner's singles for the top three finalists, Samantha Jade, The Collective and Jason Owen, were written by Australian songwriting and production duo DNA Songs.

[76] Two days after The X Factor ended, it was announced that The Collective and Owen both signed recording contracts with Sony Music Australia and would release "Surrender" and "Make It Last" as their debut singles.

[81] On 20 September 2012, the Seven Network issued a statement saying that contestant Josh Brookes was disqualified from The X Factor because he "behaved in an inappropriate manner" on social media.

[8][82] The Seven Network stated, "After a careful review of the incident, FremantleMedia Australia, producers of the program, together with Channel Seven, made a joint decision to remove him from the competition".

[89] The announcement of the winner during the grand final decider show on 20 November 2012 was watched by 1,921,000 viewers, making it the highest rated episode of the fourth season.