Demi Lovato joins X Factor USA judges on stage 01981
Demi Lovato joins X Factor USA judges on stage 01982
Demi Lovato joins X Factor USA judges on stage 01983
Demi Lovato joins X Factor USA judges on stage 01984
Demi Lovato joins X Factor USA judges on stage 01985
Demi Lovato joins X Factor USA judges on stage 01986
Demi Lovato joins X Factor USA judges on stage 01987
Demi Lovato joins X Factor USA judges on stage 01988
Demi Lovato joins X Factor USA judges on stage 01989
Demi Lovato joins X Factor USA judges on stage 01990
Demi Lovato joins X Factor USA judges on stage 01991
Demi Lovato joins X Factor USA judges on stage 01992