Demi Lovato joins X Factor USA judges on stage 08969
Demi Lovato joins X Factor USA judges on stage 08970
Demi Lovato joins X Factor USA judges on stage 08971
Demi Lovato joins X Factor USA judges on stage 08972
Demi Lovato joins X Factor USA judges on stage 08973
Demi Lovato joins X Factor USA judges on stage 08974
Demi Lovato joins X Factor USA judges on stage 08975
Demi Lovato joins X Factor USA judges on stage 08976
Demi Lovato joins X Factor USA judges on stage 08977
Demi Lovato joins X Factor USA judges on stage 08978
Demi Lovato joins X Factor USA judges on stage 08979
Demi Lovato joins X Factor USA judges on stage 08980