Demi Lovato joins X Factor USA judges on stage 02001
Demi Lovato joins X Factor USA judges on stage 02002
Demi Lovato joins X Factor USA judges on stage 02003
Demi Lovato joins X Factor USA judges on stage 02004
Demi Lovato joins X Factor USA judges on stage 02005
Demi Lovato joins X Factor USA judges on stage 02006
Demi Lovato joins X Factor USA judges on stage 02007
Demi Lovato joins X Factor USA judges on stage 02008
Demi Lovato joins X Factor USA judges on stage 02009
Demi Lovato joins X Factor USA judges on stage 02010
Demi Lovato joins X Factor USA judges on stage 02011
Demi Lovato joins X Factor USA judges on stage 02012