Demi Lovato joins X Factor USA judges on stage 18525
Demi Lovato joins X Factor USA judges on stage 18526
Demi Lovato joins X Factor USA judges on stage 18527
Demi Lovato joins X Factor USA judges on stage 18528
Demi Lovato joins X Factor USA judges on stage 18529
Demi Lovato joins X Factor USA judges on stage 18530
Demi Lovato joins X Factor USA judges on stage 18531
Demi Lovato joins X Factor USA judges on stage 18532
Demi Lovato joins X Factor USA judges on stage 18533
Demi Lovato joins X Factor USA judges on stage 18534
Demi Lovato joins X Factor USA judges on stage 18535
Demi Lovato joins X Factor USA judges on stage 18536