Demi Lovato joins X Factor USA judges on stage 17525
Demi Lovato joins X Factor USA judges on stage 17526
Demi Lovato joins X Factor USA judges on stage 17527
Demi Lovato joins X Factor USA judges on stage 17528
Demi Lovato joins X Factor USA judges on stage 17529
Demi Lovato joins X Factor USA judges on stage 17530
Demi Lovato joins X Factor USA judges on stage 17531
Demi Lovato joins X Factor USA judges on stage 17532
Demi Lovato joins X Factor USA judges on stage 17533
Demi Lovato joins X Factor USA judges on stage 17534
Demi Lovato joins X Factor USA judges on stage 17535
Demi Lovato joins X Factor USA judges on stage 17536