Demi Lovato joins X Factor USA judges on stage 15513
Demi Lovato joins X Factor USA judges on stage 15514
Demi Lovato joins X Factor USA judges on stage 15515
Demi Lovato joins X Factor USA judges on stage 15516
Demi Lovato joins X Factor USA judges on stage 15517
Demi Lovato joins X Factor USA judges on stage 15518
Demi Lovato joins X Factor USA judges on stage 15519
Demi Lovato joins X Factor USA judges on stage 15520
Demi Lovato joins X Factor USA judges on stage 15521
Demi Lovato joins X Factor USA judges on stage 15522
Demi Lovato joins X Factor USA judges on stage 15523
Demi Lovato joins X Factor USA judges on stage 15524