Simon Cowell rows with 'incredibly dumb' Demi Lovato as she criticises(02)

Simon Cowell rows with 'incredibly dumb' Demi Lovato as she criticises(02)


Image gallery: X Factor Simon Cowell And Demi Lovato Clash

Demi Lovato and Simon Cowell Funniest moments on The X factor 'X Factor' feud Demi Lovato slams Simon Cowell's act with 'incredibly Simon Cowell rows with 'incredibly dumb' Demi Lovato as she criticises Demi Lovato and Simon Cowell Funniest moments on The X factor Simon Cowell And Demi Lovato Affair