Demi Lovato joins X Factor USA judges on stage 05995
Demi Lovato joins X Factor USA judges on stage 05996
Demi Lovato joins X Factor USA judges on stage 05997
Demi Lovato joins X Factor USA judges on stage 05998
Demi Lovato joins X Factor USA judges on stage 05999
Demi Lovato joins X Factor USA judges on stage 06000
Demi Lovato joins X Factor USA judges on stage 06001
Demi Lovato joins X Factor USA judges on stage 06002