Demi Lovato joins X Factor USA judges on stage 19945
Demi Lovato joins X Factor USA judges on stage 19946
Demi Lovato joins X Factor USA judges on stage 19947
Demi Lovato joins X Factor USA judges on stage 19948
Demi Lovato joins X Factor USA judges on stage 19949
Demi Lovato joins X Factor USA judges on stage 19950
Demi Lovato joins X Factor USA judges on stage 19951
Demi Lovato joins X Factor USA judges on stage 19952
Demi Lovato joins X Factor USA judges on stage 19953
Demi Lovato joins X Factor USA judges on stage 19954
Demi Lovato joins X Factor USA judges on stage 19955
Demi Lovato joins X Factor USA judges on stage 19956