The X Factor
Dermot O'LearySelf - Presenter Sharon OsbourneSelf - Judge Nicole ScherzingerSelf - Judge Dannii MinogueSelf - Judge Kate ThorntonSelf - Presenter Kelly RowlandSelf - Judge Robbie WilliamsSelf - Judge Caroline FlackSelf - Presenter Olly MursSelf - Presenter Nick GrimshawSelf - Judge Louis TomlinsonSelf - Judge Dalton HarrisSelf - Contestant Brendan MurraySelf - Contestant Brian FriedmanSelf - Creative Director Jeff BrazierSelf - OB Presenter Michael UnderwoodSelf - OB Presenter Niki EvansSelf - Contestant Myleene KlassSelf - OB Presenter Harry StylesSelf - Contestant Leona LewisSelf - Special Guest Michael BubléSelf - Special Guest Luke JohnsonSelf - Dancer Céline DionSelf - Special Guest Rod StewartSelf - Special Guest Lionel RichieSelf - Special Guest Mariah CareySelf - Special Guest Barry ManilowSelf - Special Guest Tony BennettSelf - Special Guest Will YoungSelf - Special Guest Kylie MinogueSelf - Special Guest Zayn MalikSelf - Contestant Liam PayneSelf - Contestant Julio IglesiasSelf - Special Guest Ray QuinnSelf - Contestant Kian EganSelf - Judges' Expert Ben MillsSelf - Contestant Leon JacksonSelf - Auditionee Britney SpearsSelf - Special Guest Gloria EstefanSelf - Performer Jason DonovanSelf - Special Guest Katherine JenkinsSelf - Special Guest UsherSelf - Special Guest Katy PerrySelf - Special Guest Ronan KeatingSelf - Guest Judge Mary ByrneSelf - Contestant Niall HoranSelf - Contestant 
