Demi Lovato joins X Factor USA judges on stage 03995
Demi Lovato joins X Factor USA judges on stage 03996
Demi Lovato joins X Factor USA judges on stage 03997
Demi Lovato joins X Factor USA judges on stage 03998
Demi Lovato joins X Factor USA judges on stage 03999
Demi Lovato joins X Factor USA judges on stage 04000
Demi Lovato joins X Factor USA judges on stage 04001
Demi Lovato joins X Factor USA judges on stage 04002