Demi Lovato joins X Factor USA judges on stage 08981
Demi Lovato joins X Factor USA judges on stage 08982
Demi Lovato joins X Factor USA judges on stage 08983
Demi Lovato joins X Factor USA judges on stage 08984
Demi Lovato joins X Factor USA judges on stage 08985
Demi Lovato joins X Factor USA judges on stage 08986
Demi Lovato joins X Factor USA judges on stage 08987
Demi Lovato joins X Factor USA judges on stage 08988
Demi Lovato joins X Factor USA judges on stage 08989
Demi Lovato joins X Factor USA judges on stage 08990
Demi Lovato joins X Factor USA judges on stage 08991
Demi Lovato joins X Factor USA judges on stage 08992