Demi Lovato joins X Factor USA judges on stage 19969
Demi Lovato joins X Factor USA judges on stage 19970
Demi Lovato joins X Factor USA judges on stage 19971
Demi Lovato joins X Factor USA judges on stage 19972
Demi Lovato joins X Factor USA judges on stage 19973
Demi Lovato joins X Factor USA judges on stage 19974
Demi Lovato joins X Factor USA judges on stage 19975
Demi Lovato joins X Factor USA judges on stage 19976
Demi Lovato joins X Factor USA judges on stage 19977
Demi Lovato joins X Factor USA judges on stage 19978
Demi Lovato joins X Factor USA judges on stage 19979
Demi Lovato joins X Factor USA judges on stage 19980