Demi Lovato joins X Factor USA judges on stage 12525
Demi Lovato joins X Factor USA judges on stage 12526
Demi Lovato joins X Factor USA judges on stage 12527
Demi Lovato joins X Factor USA judges on stage 12528
Demi Lovato joins X Factor USA judges on stage 12529
Demi Lovato joins X Factor USA judges on stage 12530
Demi Lovato joins X Factor USA judges on stage 12531
Demi Lovato joins X Factor USA judges on stage 12532
Demi Lovato joins X Factor USA judges on stage 12533
Demi Lovato joins X Factor USA judges on stage 12534
Demi Lovato joins X Factor USA judges on stage 12535
Demi Lovato joins X Factor USA judges on stage 12536