Demi Lovato joins X Factor USA judges on stage 05037
Demi Lovato joins X Factor USA judges on stage 05038
Demi Lovato joins X Factor USA judges on stage 05039
Demi Lovato joins X Factor USA judges on stage 05040
Demi Lovato joins X Factor USA judges on stage 05041
Demi Lovato joins X Factor USA judges on stage 05042
Demi Lovato joins X Factor USA judges on stage 05043
Demi Lovato joins X Factor USA judges on stage 05044
Demi Lovato joins X Factor USA judges on stage 05045
Demi Lovato joins X Factor USA judges on stage 05046
Demi Lovato joins X Factor USA judges on stage 05047
Demi Lovato joins X Factor USA judges on stage 05048