Demi Lovato joins X Factor USA judges on stage 21037
Demi Lovato joins X Factor USA judges on stage 21038
Demi Lovato joins X Factor USA judges on stage 21039
Demi Lovato joins X Factor USA judges on stage 21040
Demi Lovato joins X Factor USA judges on stage 21041
Demi Lovato joins X Factor USA judges on stage 21042
Demi Lovato joins X Factor USA judges on stage 21043
Demi Lovato joins X Factor USA judges on stage 21044
Demi Lovato joins X Factor USA judges on stage 21045
Demi Lovato joins X Factor USA judges on stage 21046
Demi Lovato joins X Factor USA judges on stage 21047
Demi Lovato joins X Factor USA judges on stage 21048