The X Factor (British TV series) series 4
season of the UK television series
The X Factor is a British television music competition to find new singing talent. The fourth series was broadcast on ITV from 18 August 2007 and was won by Leon Jackson on 15 December 2007, with Rhydian Roberts finishing as the runner-up and Dannii Minogue emerging as the winning mentor. Dermot O'Leary presented for the first time, replacing Kate Thornton, who had been presenting the show since series 1 in 2004. Fearne Cotton replaced Ben Shephard as presenter on the spin-off show The Xtra Factor. The original judging panel consisted of Simon Cowell, Minogue, Sharon Osbourne and Brian Friedman. Friedman left the panel halfway through the first audition episode and was replaced by former judge Louis Walsh.
This series saw a number of changes to the format, most notably the lowering of the minimum age for participants from 16 to 14 and the increase in the number of categories from three to four, resulting from the division of the 16-24s category into separate male and female categories.
Jackson's prize as winner was a £1 million recording contract. His first single release was "When You Believe", arranged for the finalists by composer Stephen Schwartz and released to download on 16 December 2007, with the physical format following on 19 December. The single became that year's Christmas number one on the UK Singles Chart and was also the fourth best selling single of 2007.
The public source identifies “The X Factor (British TV series) series 4” as season of the UK television series. This brief keeps that definition visible, then builds a research path around Factor, British and series.
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Reception evidence should be dated and situated: later canonical status may differ sharply from the work’s initial circulation. The source revision retrieved here is dated Jun 5, 2026. The linked authority identifier is Q7776449. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2007 and 2004.
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This entry incorporates text from “The X Factor (British TV series) series 4” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.