Demi Lovato joins X Factor USA judges on stage 15525
Demi Lovato joins X Factor USA judges on stage 15526
Demi Lovato joins X Factor USA judges on stage 15527
Demi Lovato joins X Factor USA judges on stage 15528
Demi Lovato joins X Factor USA judges on stage 15529
Demi Lovato joins X Factor USA judges on stage 15530
Demi Lovato joins X Factor USA judges on stage 15531
Demi Lovato joins X Factor USA judges on stage 15532
Demi Lovato joins X Factor USA judges on stage 15533
Demi Lovato joins X Factor USA judges on stage 15534
Demi Lovato joins X Factor USA judges on stage 15535
Demi Lovato joins X Factor USA judges on stage 15536