Demi Lovato joins X Factor USA judges on stage 17481
Demi Lovato joins X Factor USA judges on stage 17482
Demi Lovato joins X Factor USA judges on stage 17483
Demi Lovato joins X Factor USA judges on stage 17484
Demi Lovato joins X Factor USA judges on stage 17485
Demi Lovato joins X Factor USA judges on stage 17486
Demi Lovato joins X Factor USA judges on stage 17487
Demi Lovato joins X Factor USA judges on stage 17488
Demi Lovato joins X Factor USA judges on stage 17489
Demi Lovato joins X Factor USA judges on stage 17490
Demi Lovato joins X Factor USA judges on stage 17491
Demi Lovato joins X Factor USA judges on stage 17492