Demi Lovato joins X Factor USA judges on stage 27469
Demi Lovato joins X Factor USA judges on stage 27470
Demi Lovato joins X Factor USA judges on stage 27471
Demi Lovato joins X Factor USA judges on stage 27472
Demi Lovato joins X Factor USA judges on stage 27473
Demi Lovato joins X Factor USA judges on stage 27474
Demi Lovato joins X Factor USA judges on stage 27475
Demi Lovato joins X Factor USA judges on stage 27476
Demi Lovato joins X Factor USA judges on stage 27477
Demi Lovato joins X Factor USA judges on stage 27478
Demi Lovato joins X Factor USA judges on stage 27479
Demi Lovato joins X Factor USA judges on stage 27480