Demi Lovato joins X Factor USA judges on stage 11993
Demi Lovato joins X Factor USA judges on stage 11994
Demi Lovato joins X Factor USA judges on stage 11996
Demi Lovato joins X Factor USA judges on stage 11997
Demi Lovato joins X Factor USA judges on stage 11998
Demi Lovato joins X Factor USA judges on stage 11999
Demi Lovato joins X Factor USA judges on stage 12000
Demi Lovato joins X Factor USA judges on stage 12001