Demi Lovato joins X Factor USA judges on stage 09001
Demi Lovato joins X Factor USA judges on stage 09002
Demi Lovato joins X Factor USA judges on stage 09003
Demi Lovato joins X Factor USA judges on stage 09004
Demi Lovato joins X Factor USA judges on stage 09005
Demi Lovato joins X Factor USA judges on stage 09006
Demi Lovato joins X Factor USA judges on stage 09007
Demi Lovato joins X Factor USA judges on stage 09008
Demi Lovato joins X Factor USA judges on stage 09009
Demi Lovato joins X Factor USA judges on stage 09010
Demi Lovato joins X Factor USA judges on stage 09011
Demi Lovato joins X Factor USA judges on stage 09012