Demi Lovato joins X Factor USA judges on stage 23976
Demi Lovato joins X Factor USA judges on stage 23977
Demi Lovato joins X Factor USA judges on stage 23978
Demi Lovato joins X Factor USA judges on stage 23979
Demi Lovato joins X Factor USA judges on stage 23980
Demi Lovato joins X Factor USA judges on stage 23981
Demi Lovato joins X Factor USA judges on stage 23982
Demi Lovato joins X Factor USA judges on stage 23983
Demi Lovato joins X Factor USA judges on stage 23984
Demi Lovato joins X Factor USA judges on stage 23985
Demi Lovato joins X Factor USA judges on stage 23986
Demi Lovato joins X Factor USA judges on stage 23987