Demi Lovato joins X Factor USA judges on stage 28037
Demi Lovato joins X Factor USA judges on stage 28038
Demi Lovato joins X Factor USA judges on stage 28039
Demi Lovato joins X Factor USA judges on stage 28040
Demi Lovato joins X Factor USA judges on stage 28041
Demi Lovato joins X Factor USA judges on stage 28042
Demi Lovato joins X Factor USA judges on stage 28043
Demi Lovato joins X Factor USA judges on stage 28044
Demi Lovato joins X Factor USA judges on stage 28045
Demi Lovato joins X Factor USA judges on stage 28046
Demi Lovato joins X Factor USA judges on stage 28047
Demi Lovato joins X Factor USA judges on stage 28048