Demi Lovato joins X Factor USA judges on stage 11969
Demi Lovato joins X Factor USA judges on stage 11970
Demi Lovato joins X Factor USA judges on stage 11971
Demi Lovato joins X Factor USA judges on stage 11972
Demi Lovato joins X Factor USA judges on stage 11973
Demi Lovato joins X Factor USA judges on stage 11974
Demi Lovato joins X Factor USA judges on stage 11975
Demi Lovato joins X Factor USA judges on stage 11976
Demi Lovato joins X Factor USA judges on stage 11977
Demi Lovato joins X Factor USA judges on stage 11978
Demi Lovato joins X Factor USA judges on stage 11979
Demi Lovato joins X Factor USA judges on stage 11980