Demi Lovato joins X Factor USA judges on stage 30037
Demi Lovato joins X Factor USA judges on stage 30038
Demi Lovato joins X Factor USA judges on stage 30039
Demi Lovato joins X Factor USA judges on stage 30040
Demi Lovato joins X Factor USA judges on stage 30041
Demi Lovato joins X Factor USA judges on stage 30042
Demi Lovato joins X Factor USA judges on stage 30043
Demi Lovato joins X Factor USA judges on stage 30044
Demi Lovato joins X Factor USA judges on stage 30045
Demi Lovato joins X Factor USA judges on stage 30046
Demi Lovato joins X Factor USA judges on stage 30047
Demi Lovato joins X Factor USA judges on stage 30048