Demi Lovato joins X Factor USA judges on stage 05525
Demi Lovato joins X Factor USA judges on stage 05526
Demi Lovato joins X Factor USA judges on stage 05527
Demi Lovato joins X Factor USA judges on stage 05528
Demi Lovato joins X Factor USA judges on stage 05529
Demi Lovato joins X Factor USA judges on stage 05530
Demi Lovato joins X Factor USA judges on stage 05531
Demi Lovato joins X Factor USA judges on stage 05532
Demi Lovato joins X Factor USA judges on stage 05533
Demi Lovato joins X Factor USA judges on stage 05534
Demi Lovato joins X Factor USA judges on stage 05535
Demi Lovato joins X Factor USA judges on stage 05536