Demi Lovato joins X Factor USA judges on stage 22572
Demi Lovato joins X Factor USA judges on stage 22573
Demi Lovato joins X Factor USA judges on stage 22574
Demi Lovato joins X Factor USA judges on stage 22575
Demi Lovato joins X Factor USA judges on stage 22576
Demi Lovato joins X Factor USA judges on stage 22577
Demi Lovato joins X Factor USA judges on stage 22578
Demi Lovato joins X Factor USA judges on stage 22579
Demi Lovato joins X Factor USA judges on stage 22580
Demi Lovato joins X Factor USA judges on stage 22581
Demi Lovato joins X Factor USA judges on stage 22582
Demi Lovato joins X Factor USA judges on stage 22583