Demi Lovato joins X Factor USA judges on stage 27981
Demi Lovato joins X Factor USA judges on stage 27982
Demi Lovato joins X Factor USA judges on stage 27983
Demi Lovato joins X Factor USA judges on stage 27984
Demi Lovato joins X Factor USA judges on stage 27985
Demi Lovato joins X Factor USA judges on stage 27986
Demi Lovato joins X Factor USA judges on stage 27987
Demi Lovato joins X Factor USA judges on stage 27988
Demi Lovato joins X Factor USA judges on stage 27989
Demi Lovato joins X Factor USA judges on stage 27990
Demi Lovato joins X Factor USA judges on stage 27991
Demi Lovato joins X Factor USA judges on stage 27992