Demi Lovato joins X Factor USA judges on stage 10513
Demi Lovato joins X Factor USA judges on stage 10514
Demi Lovato joins X Factor USA judges on stage 10515
Demi Lovato joins X Factor USA judges on stage 10516
Demi Lovato joins X Factor USA judges on stage 10517
Demi Lovato joins X Factor USA judges on stage 10518
Demi Lovato joins X Factor USA judges on stage 10519
Demi Lovato joins X Factor USA judges on stage 10520
Demi Lovato joins X Factor USA judges on stage 10521
Demi Lovato joins X Factor USA judges on stage 10522
Demi Lovato joins X Factor USA judges on stage 10523
Demi Lovato joins X Factor USA judges on stage 10524