Demi Lovato - Funny Moments With Simon Cowell - Must Watch! - The X Factor (USA)

Demi Lovato & Simon Cowell _ Funny Moments - Best Auditions X Factor 2015' USA Season 5

Best Auditions X Factor 2015' USA Season 5 Demi Lovato & Simon Cowell

The X Factor USA 2013 Demi Lovato Twerking To Simon Cowell

The X Factor USA 2013 Demi Lovato TWERKS on Simon

Demi Lovato F Bomb and X Factor USA Finale Best Moments

Cher Lloyd talks marriage, Demi Lovato and Simon Cowell

Demi Lovato Calls Simon Cowell A Bit Of An Asshole in MTV VMAs 2012 Conference

Simon Cowell and Demi Lovato have a war of words

Simon Cowell Discusses the Possibility of Demi Lovato Being His Baby's Godmother

Simon Cowell Demi Lovato Find Each Other Very Annoying On CONAN

The X Factor USA Simon Cowell Is The Best Judge Ever

Cheryl Cole Reveals that Simon Cowell Was Right to Fire her from the X Factor USA

Cheryl Cole verriet, dass Simon Cowell richtig handelte, als er sie bei X Factor USA rauswarf

THE X FACTOR USA 2011 - The Girls Meet Simon Cowell!

The X FACTOR USA 2012 Simon Cowell Talks With Playback LYLAS Judges Homes

The X Factor USA 2013 Judge Profiles Simon Cowell Season 3

Alex and Sierra and Simon Cowell "The X Factor" USA Season 3 Finale Red Carpet Arrivals

Simon Cowell actually singing on The X Factor USA

Simon Cowell Will Be the Only Male Judge on New Season of X Factor USA

Simon Cowell Interview at "The X Factor" USA Season 3 Finale Night 2 - Alex and Sierra