The X Factor (UK) - Music Releases By The X Factor Contestants

Music Releases By The X Factor Contestants

As of December 2011, the show has spawned eight number-one winners' singles (five of which have been the Christmas number one), four number-one charity singles, and a total of 15 number-one singles by contestants who have appeared on the show (including winners and runners-up).

By series 6 (2009) it had seemingly become such a certainty that the X Factor winner would gain the Christmas number one slot every year that bookmakers William Hill were considering withdrawing from the 30-year tradition of betting on the outcome. However, hostility to the show's stranglehold on the Christmas number one slot from some quarters had prompted attempts to propel an alternative song to the 2008 Christmas number one spot, and in 2009 a similar internet-led campaign was successful, taking Rage Against the Machine's "Killing in the Name" to Christmas number one at the expense of The X Factor winner Joe McElderry. McElderry's single climbed to the top of the chart a week later.

In series 1–2, the winner's debut album would be released a few months after their victory in the show. The album would contain some new material but would consist largely of cover versions. This format changed with series 3 winner Leona Lewis. Cowell, Lewis's X Factor mentor and newly-appointed manager, said: "We could have gone into the studio for a month, made the record quick, and thrown it out. It would have been the wrong thing to do." The success of Lewis's debut album Spirit ensured that the debut albums of future series winners (such as series 4 winner Leon Jackson) would consist more of new material than of cover versions.