Demi Lovato joins X Factor USA judges on stage 19885
Demi Lovato joins X Factor USA judges on stage 19886
Demi Lovato joins X Factor USA judges on stage 19887
Demi Lovato joins X Factor USA judges on stage 19888
Demi Lovato joins X Factor USA judges on stage 19889
Demi Lovato joins X Factor USA judges on stage 19890
Demi Lovato joins X Factor USA judges on stage 19891
Demi Lovato joins X Factor USA judges on stage 19892
Demi Lovato joins X Factor USA judges on stage 19893
Demi Lovato joins X Factor USA judges on stage 19894
Demi Lovato joins X Factor USA judges on stage 19895
Demi Lovato joins X Factor USA judges on stage 19896