X Factor 2014 ratings: Return of Cheryl Cole and Simon Cowell attracts biggest debut since 2011, The Independent

An average 9.5 million tuned in to watch the first episode of the tenth series

Cheryl (singer) - Wikipedia

Simon Cowell Discusses X Factor's Cheryl Cole Snafu, Voice Mimicry and Hidden Cameras – TVLine

X Factor final 2014 ratings slump to 10-year low, The X Factor

X Factor's' Simon Cowell Slams Simon Fuller, Admits Anger at 'Idol,' Reveals He and Cheryl Cole No Longer Speaking – The Hollywood Reporter

Simon Cowell To Bring Back Cheryl Cole And Dannii Minogue For 'X Factor' 2014?

X Factor 'AXED': A look back at the show's iconic celebrity performances

X Factor 2014: Return of Simon Cowell and Cheryl Cole sees the fun come back - Mark Jefferies - Mirror Online

X Factor, ITV, review: Simon Cowell bans sob stories but Cheryl Cole can't stop crying, The Independent

X Factor 2009 – Music Mania

Simon Cowell wants Cheryl Cole on US X Factor, claims publicist, Cheryl

Cheryl Cole and Simon Cowell set to return to the 2014 UK series of the X Factor, Celebrity News, Showbiz & TV

X Factor final 2014 ratings slump to 10-year low, The X Factor

Simon Cowell, Cheryl Cole Returns Deliver 'X Factor UK' Ratings Bump - TheWrap

The X Factor 2014: Cheryl Cole needed bodyguard after wearing diamonds worth £1million

The X Factor 2014: Cheryl Cole return for £2million from Simon Cowell