Following auditions was super bootcamp, where Keating, Minogue and Redfoo worked together and collectively chose 24 acts (six from each category).

Bassingthwaighte did not attend the Sydney auditions and bootcamp because she was pregnant at the time and was advised not to fly from her home in Melbourne.

They were also assisted by guest mentors Jon Bon Jovi, will.i.am, Kylie Minogue, Kelly Osbourne and Sebastian.

In February 2013, it was reported that Guy Sebastian would not be returning for season 5, due to tour commitments and to focus on a music career in the United States.

[4] It was also reported that Mel B was not returning, due to visa issues in Australia and her commitments with America's Got Talent.

[9] Redfoo was offered the opportunity to join the judging panel during his visit to Australia for the 2013 Australian Open, where he was supporting girlfriend and then-World number-one Victoria Azarenka.

'"[11] Minogue revealed to The Daily Telegraph that she was offered many other TV roles but chose to join The X Factor because she had always been a fan of the Australian version.

[14] The 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.

[16] Natalie Bassingthwaighte did not attend the Sydney auditions because she was pregnant at the time and was advised not to fly from her home in Melbourne.

[18] The judges sent home more acts, but called back some rejected soloists from the Boys and Girls categories to form three supergroups – a boy band (consisting of Fabian Andres, Zac Hakos, Jayden Rodrigues and Nick Tabone), girl group (consisting of Jessica Kent, Dina Knoweiss, Rebecca Quinn and Carla Wehbe) and unisex group (consisting of Kelebek, Jacinta Gulisano and Jordan Rodrigues).

[20] The 24 successful acts were: Matt Gresham had originally been put through to Home Visits in the Over 24s category but decided he could not commit to the competition and was replaced by Dami Im.

[21] The home visits round was filmed in June 2013[22][23] and saw the remaining 24 acts travel to exclusive locations around the world to find out which judge would become their mentor.