Demi Lovato joins X Factor USA judges on stage 24476
Demi Lovato joins X Factor USA judges on stage 24477
Demi Lovato joins X Factor USA judges on stage 24478
Demi Lovato joins X Factor USA judges on stage 24479
Demi Lovato joins X Factor USA judges on stage 24480
Demi Lovato joins X Factor USA judges on stage 24481
Demi Lovato joins X Factor USA judges on stage 24482
Demi Lovato joins X Factor USA judges on stage 24483
Demi Lovato joins X Factor USA judges on stage 24484
Demi Lovato joins X Factor USA judges on stage 24485
Demi Lovato joins X Factor USA judges on stage 24486
Demi Lovato joins X Factor USA judges on stage 24487