Demi Lovato joins X Factor USA judges on stage 20481
Demi Lovato joins X Factor USA judges on stage 20482
Demi Lovato joins X Factor USA judges on stage 20483
Demi Lovato joins X Factor USA judges on stage 20484
Demi Lovato joins X Factor USA judges on stage 20485
Demi Lovato joins X Factor USA judges on stage 20486
Demi Lovato joins X Factor USA judges on stage 20487
Demi Lovato joins X Factor USA judges on stage 20488
Demi Lovato joins X Factor USA judges on stage 20489
Demi Lovato joins X Factor USA judges on stage 20490
Demi Lovato joins X Factor USA judges on stage 20491
Demi Lovato joins X Factor USA judges on stage 20492