Demi Lovato joins X Factor USA judges on stage 27037
Demi Lovato joins X Factor USA judges on stage 27038
Demi Lovato joins X Factor USA judges on stage 27039
Demi Lovato joins X Factor USA judges on stage 27040
Demi Lovato joins X Factor USA judges on stage 27041
Demi Lovato joins X Factor USA judges on stage 27042
Demi Lovato joins X Factor USA judges on stage 27043
Demi Lovato joins X Factor USA judges on stage 27044
Demi Lovato joins X Factor USA judges on stage 27045
Demi Lovato joins X Factor USA judges on stage 27046
Demi Lovato joins X Factor USA judges on stage 27047
Demi Lovato joins X Factor USA judges on stage 27048