Demi Lovato joins X Factor USA judges on stage 24488
Demi Lovato joins X Factor USA judges on stage 24489
Demi Lovato joins X Factor USA judges on stage 24490
Demi Lovato joins X Factor USA judges on stage 24491
Demi Lovato joins X Factor USA judges on stage 24492
Demi Lovato joins X Factor USA judges on stage 24493
Demi Lovato joins X Factor USA judges on stage 24494
Demi Lovato joins X Factor USA judges on stage 24495
Demi Lovato joins X Factor USA judges on stage 24496
Demi Lovato joins X Factor USA judges on stage 24497
Demi Lovato joins X Factor USA judges on stage 24498
Demi Lovato joins X Factor USA judges on stage 24499