[4] Comedy duo Luke & Wyatt joined the sixth season as the hosts of the online spin-off show The Fan Factor.
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 April 2014.
Following auditions was super bootcamp, where all four judges worked together and collectively chose 24 acts, including six from each of the four categories: Boys, Girls, Over 25s and Groups.
After super bootcamp was the home visits round, where each judge reduced their six acts to three, with assistance from guest mentors James Blunt, John Legend, Jennifer Lopez, Jessica Mauboy and Nicole Scherzinger.
Open auditions in front of the show's producers took place in 13 cities[8][9] and ran from November 2013 to January 2014.
[10] The auditionees chosen by the producers were invited back to the last set of auditions that took place in front of the judges and a live studio audience.
[citation needed] The first day of bootcamp saw judges Ronan Keating, Natalie Bassingthwaighte, Redfoo and Dannii Minogue split each category into collaborations.
[12] At the end of the day, a select group of soloists from the Boys and Girls categories were first requested by the judges to return to the stage to form a boy band (consisting of Ellis Hall, Harry Target and Joel Watson) and a girl group (consisting of Serenity, Tahnie Cristini, Chaska Halliday and Nada Leigh Nasser).
[12][14] On the fourth day, each act individually performed one song to the judges and a live audience of one thousand.
[16] Bassingthwaighte and Keating took the Boys and Girls to New York City, Redfoo took the Over 25s to Las Vegas, and Minogue took the Groups to an exclusive location in Sydney.
[18] Key: At the end of home visits, it was announced that each judge could bring back one eliminated act from their category, who did not make the top twelve, as their wildcard.
In September 2014, the top six finalists and Australian pop group Justice Crew recorded a cover of Pharrell Williams' song "Happy" for the Sony Foundation's youth cancer program, You Can.
[62] Their version was released on the iTunes Store on 29 September 2014, as a charity single to help raise funds for You Can to establish specialised youth cancer centres across Australia.
[63][64] XOX were criticised by Keating and Redfoo after their performance of Deee-Lite's "Groove Is in the Heart" during the third live show.
[66][67] XOX's mentor Minogue told Keating that she was personally offended by his comments because she felt it was hypocritical as he did not like her criticising his acts.
"[68] In an interview with TV Week, group member Nada-Leigh Nasser believed that Keating's consistently negative comments could have played a part in their elimination: "Ronan is very influential and his opinion does matter.
"[71] During the ninth live decider show the following night, Redfoo apologised to Minogue for the comments he made about her outfit.