Demi Lovato joins X Factor USA judges on stage 08993
Demi Lovato joins X Factor USA judges on stage 08994
Demi Lovato joins X Factor USA judges on stage 08995
Demi Lovato joins X Factor USA judges on stage 08996
Demi Lovato joins X Factor USA judges on stage 08997
Demi Lovato joins X Factor USA judges on stage 08998
Demi Lovato joins X Factor USA judges on stage 08999
Demi Lovato joins X Factor USA judges on stage 09000