Demi Lovato joins X Factor USA judges on stage 00469
Demi Lovato joins X Factor USA judges on stage 00470
Demi Lovato joins X Factor USA judges on stage 00471
Demi Lovato joins X Factor USA judges on stage 00472
Demi Lovato joins X Factor USA judges on stage 00473
Demi Lovato joins X Factor USA judges on stage 00474
Demi Lovato joins X Factor USA judges on stage 00475
Demi Lovato joins X Factor USA judges on stage 00476
Demi Lovato joins X Factor USA judges on stage 00477
Demi Lovato joins X Factor USA judges on stage 00478
Demi Lovato joins X Factor USA judges on stage 00479
Demi Lovato joins X Factor USA judges on stage 00480