The X Factor (British TV series) series 12

''The X Factor'' is a British television music competition to find new singing talent. The twelfth series began airing on ITV on 29 August 2015 and ended on 13 December 2015. The judges were Simon Cowell, Cheryl Fernandez-Versini, who returned for their respective ninth and fifth series as judges, series 9 guest judge and former ''The Voice UK'' coach Rita Ora, and BBC Radio 1 DJ Nick Grimshaw, with Grimshaw and Ora replacing Louis Walsh, the only judge who had been on the show from its inception in 2004, and Mel B. It was presented by Caroline Flack and Olly Murs, who had both previously co-presented spin-off show ''The Xtra Factor'' on ITV2 and replaced Dermot O'Leary, who left after eight series. Rochelle Humes and Melvin Odoom presented ''The Xtra Factor'', replacing Sarah-Jane Crawford. Louisa Johnson was announced as the winner on 13 December 2015, making Ora the winning mentor. Provided by Wikipedia