Demi Lovato joins X Factor USA judges on stage 05513
Demi Lovato joins X Factor USA judges on stage 05514
Demi Lovato joins X Factor USA judges on stage 05515
Demi Lovato joins X Factor USA judges on stage 05516
Demi Lovato joins X Factor USA judges on stage 05517
Demi Lovato joins X Factor USA judges on stage 05518
Demi Lovato joins X Factor USA judges on stage 05519
Demi Lovato joins X Factor USA judges on stage 05520
Demi Lovato joins X Factor USA judges on stage 05521
Demi Lovato joins X Factor USA judges on stage 05522
Demi Lovato joins X Factor USA judges on stage 05523
Demi Lovato joins X Factor USA judges on stage 05524