Demi Lovato joins X Factor USA judges on stage 13037
Demi Lovato joins X Factor USA judges on stage 13038
Demi Lovato joins X Factor USA judges on stage 13039
Demi Lovato joins X Factor USA judges on stage 13040
Demi Lovato joins X Factor USA judges on stage 13041
Demi Lovato joins X Factor USA judges on stage 13042
Demi Lovato joins X Factor USA judges on stage 13043
Demi Lovato joins X Factor USA judges on stage 13044
Demi Lovato joins X Factor USA judges on stage 13045
Demi Lovato joins X Factor USA judges on stage 13046
Demi Lovato joins X Factor USA judges on stage 13047
Demi Lovato joins X Factor USA judges on stage 13048