Demi Lovato joins X Factor USA judges on stage 09493
Demi Lovato joins X Factor USA judges on stage 09494
Demi Lovato joins X Factor USA judges on stage 09495
Demi Lovato joins X Factor USA judges on stage 09496
Demi Lovato joins X Factor USA judges on stage 09497
Demi Lovato joins X Factor USA judges on stage 09498
Demi Lovato joins X Factor USA judges on stage 09499
Demi Lovato joins X Factor USA judges on stage 09500