Demi Lovato joins X Factor USA judges on stage 15037
Demi Lovato joins X Factor USA judges on stage 15038
Demi Lovato joins X Factor USA judges on stage 15039
Demi Lovato joins X Factor USA judges on stage 15040
Demi Lovato joins X Factor USA judges on stage 15041
Demi Lovato joins X Factor USA judges on stage 15042
Demi Lovato joins X Factor USA judges on stage 15043
Demi Lovato joins X Factor USA judges on stage 15044
Demi Lovato joins X Factor USA judges on stage 15045
Demi Lovato joins X Factor USA judges on stage 15046
Demi Lovato joins X Factor USA judges on stage 15047
Demi Lovato joins X Factor USA judges on stage 15048