Demi Lovato joins X Factor USA judges on stage 09993
Demi Lovato joins X Factor USA judges on stage 09994
Demi Lovato joins X Factor USA judges on stage 09995
Demi Lovato joins X Factor USA judges on stage 09996
Demi Lovato joins X Factor USA judges on stage 09997
Demi Lovato joins X Factor USA judges on stage 09998
Demi Lovato joins X Factor USA judges on stage 09999
Demi Lovato joins X Factor USA judges on stage 10000