Demi Lovato joins X Factor USA judges on stage 19921
Demi Lovato joins X Factor USA judges on stage 19922
Demi Lovato joins X Factor USA judges on stage 19923
Demi Lovato joins X Factor USA judges on stage 19924
Demi Lovato joins X Factor USA judges on stage 19925
Demi Lovato joins X Factor USA judges on stage 19926
Demi Lovato joins X Factor USA judges on stage 19927
Demi Lovato joins X Factor USA judges on stage 19928
Demi Lovato joins X Factor USA judges on stage 19929
Demi Lovato joins X Factor USA judges on stage 19930
Demi Lovato joins X Factor USA judges on stage 19931
Demi Lovato joins X Factor USA judges on stage 19932