Demi Lovato joins X Factor USA judges on stage 04513
Demi Lovato joins X Factor USA judges on stage 04514
Demi Lovato joins X Factor USA judges on stage 04515
Demi Lovato joins X Factor USA judges on stage 04516
Demi Lovato joins X Factor USA judges on stage 04517
Demi Lovato joins X Factor USA judges on stage 04518
Demi Lovato joins X Factor USA judges on stage 04519
Demi Lovato joins X Factor USA judges on stage 04520
Demi Lovato joins X Factor USA judges on stage 04521
Demi Lovato joins X Factor USA judges on stage 04522
Demi Lovato joins X Factor USA judges on stage 04523
Demi Lovato joins X Factor USA judges on stage 04524