Demi Lovato joins X Factor USA judges on stage 01957
Demi Lovato joins X Factor USA judges on stage 01958
Demi Lovato joins X Factor USA judges on stage 01959
Demi Lovato joins X Factor USA judges on stage 01960
Demi Lovato joins X Factor USA judges on stage 01961
Demi Lovato joins X Factor USA judges on stage 01962
Demi Lovato joins X Factor USA judges on stage 01963
Demi Lovato joins X Factor USA judges on stage 01964
Demi Lovato joins X Factor USA judges on stage 01965
Demi Lovato joins X Factor USA judges on stage 01966
Demi Lovato joins X Factor USA judges on stage 01967
Demi Lovato joins X Factor USA judges on stage 01968