Demi Lovato joins X Factor USA judges on stage 03513
Demi Lovato joins X Factor USA judges on stage 03514
Demi Lovato joins X Factor USA judges on stage 03515
Demi Lovato joins X Factor USA judges on stage 03516
Demi Lovato joins X Factor USA judges on stage 03517
Demi Lovato joins X Factor USA judges on stage 03518
Demi Lovato joins X Factor USA judges on stage 03519
Demi Lovato joins X Factor USA judges on stage 03520
Demi Lovato joins X Factor USA judges on stage 03521
Demi Lovato joins X Factor USA judges on stage 03522
Demi Lovato joins X Factor USA judges on stage 03523
Demi Lovato joins X Factor USA judges on stage 03524