Demi Lovato joins X Factor USA judges on stage 08037
Demi Lovato joins X Factor USA judges on stage 08038
Demi Lovato joins X Factor USA judges on stage 08039
Demi Lovato joins X Factor USA judges on stage 08040
Demi Lovato joins X Factor USA judges on stage 08041
Demi Lovato joins X Factor USA judges on stage 08042
Demi Lovato joins X Factor USA judges on stage 08043
Demi Lovato joins X Factor USA judges on stage 08044
Demi Lovato joins X Factor USA judges on stage 08045
Demi Lovato joins X Factor USA judges on stage 08046
Demi Lovato joins X Factor USA judges on stage 08047
Demi Lovato joins X Factor USA judges on stage 08048