High Quality Content by WIKIPEDIA articles! The X Factor is an Australian television reality music competition, based on the original UK series, to find new singing talent; the winner of which receives a management contract and a Sony Music Australia recording contract. The 2011 season premiered on the Seven Network on 29 August 2011 and ended on 22 November 2011. The winner was Reece Mastin and his debut single "Good Night" was released after the final. Mastin was mentored throughout by Guy Sebastian, who won as mentor for the first time. The season was presented by Luke Jacobz. Sebastian and Ronan Keating were the only judges from the previous season who returned, while Natalie Bassingthwaighte and Mel B joined the judging panel as replacements for former judges, Natalie Imbruglia and Kyle Sandilands.