Demi Lovato joins X Factor USA judges on stage 19513
Demi Lovato joins X Factor USA judges on stage 19514
Demi Lovato joins X Factor USA judges on stage 19515
Demi Lovato joins X Factor USA judges on stage 19516
Demi Lovato joins X Factor USA judges on stage 19517
Demi Lovato joins X Factor USA judges on stage 19518
Demi Lovato joins X Factor USA judges on stage 19519
Demi Lovato joins X Factor USA judges on stage 19520
Demi Lovato joins X Factor USA judges on stage 19521
Demi Lovato joins X Factor USA judges on stage 19522
Demi Lovato joins X Factor USA judges on stage 19523
Demi Lovato joins X Factor USA judges on stage 19524