Demi Lovato joins X Factor USA judges on stage 19897
Demi Lovato joins X Factor USA judges on stage 19898
Demi Lovato joins X Factor USA judges on stage 19899
Demi Lovato joins X Factor USA judges on stage 19900
Demi Lovato joins X Factor USA judges on stage 19901
Demi Lovato joins X Factor USA judges on stage 19902
Demi Lovato joins X Factor USA judges on stage 19903
Demi Lovato joins X Factor USA judges on stage 19904
Demi Lovato joins X Factor USA judges on stage 19905
Demi Lovato joins X Factor USA judges on stage 19906
Demi Lovato joins X Factor USA judges on stage 19907
Demi Lovato joins X Factor USA judges on stage 19908