Demi Lovato joins X Factor USA judges on stage 26525
Demi Lovato joins X Factor USA judges on stage 26526
Demi Lovato joins X Factor USA judges on stage 26527
Demi Lovato joins X Factor USA judges on stage 26528
Demi Lovato joins X Factor USA judges on stage 26529
Demi Lovato joins X Factor USA judges on stage 26530
Demi Lovato joins X Factor USA judges on stage 26531
Demi Lovato joins X Factor USA judges on stage 26532
Demi Lovato joins X Factor USA judges on stage 26533
Demi Lovato joins X Factor USA judges on stage 26534
Demi Lovato joins X Factor USA judges on stage 26535
Demi Lovato joins X Factor USA judges on stage 26536