Demi Lovato joins X Factor USA judges on stage 13513
Demi Lovato joins X Factor USA judges on stage 13514
Demi Lovato joins X Factor USA judges on stage 13515
Demi Lovato joins X Factor USA judges on stage 13516
Demi Lovato joins X Factor USA judges on stage 13517
Demi Lovato joins X Factor USA judges on stage 13518
Demi Lovato joins X Factor USA judges on stage 13519
Demi Lovato joins X Factor USA judges on stage 13520
Demi Lovato joins X Factor USA judges on stage 13521
Demi Lovato joins X Factor USA judges on stage 13522
Demi Lovato joins X Factor USA judges on stage 13523
Demi Lovato joins X Factor USA judges on stage 13524