Demi Lovato joins X Factor USA judges on stage 06993
Demi Lovato joins X Factor USA judges on stage 06994
Demi Lovato joins X Factor USA judges on stage 06995
Demi Lovato joins X Factor USA judges on stage 06996
Demi Lovato joins X Factor USA judges on stage 06997
Demi Lovato joins X Factor USA judges on stage 06998
Demi Lovato joins X Factor USA judges on stage 06999
Demi Lovato joins X Factor USA judges on stage 07000