Demi Lovato joins X Factor USA judges on stage 19525
Demi Lovato joins X Factor USA judges on stage 19526
Demi Lovato joins X Factor USA judges on stage 19527
Demi Lovato joins X Factor USA judges on stage 19528
Demi Lovato joins X Factor USA judges on stage 19529
Demi Lovato joins X Factor USA judges on stage 19530
Demi Lovato joins X Factor USA judges on stage 19531
Demi Lovato joins X Factor USA judges on stage 19532
Demi Lovato joins X Factor USA judges on stage 19533
Demi Lovato joins X Factor USA judges on stage 19534
Demi Lovato joins X Factor USA judges on stage 19535
Demi Lovato joins X Factor USA judges on stage 19536