Demi Lovato joins X Factor USA judges on stage 07982
Demi Lovato joins X Factor USA judges on stage 07983
Demi Lovato joins X Factor USA judges on stage 07984
Demi Lovato joins X Factor USA judges on stage 07985
Demi Lovato joins X Factor USA judges on stage 07986
Demi Lovato joins X Factor USA judges on stage 07987
Demi Lovato joins X Factor USA judges on stage 07988
Demi Lovato joins X Factor USA judges on stage 07989
Demi Lovato joins X Factor USA judges on stage 07990
Demi Lovato joins X Factor USA judges on stage 07991
Demi Lovato joins X Factor USA judges on stage 07992
Demi Lovato joins X Factor USA judges on stage 07993