Demi Lovato joins X Factor USA judges on stage 10001
Demi Lovato joins X Factor USA judges on stage 10002
Demi Lovato joins X Factor USA judges on stage 10003
Demi Lovato joins X Factor USA judges on stage 10004
Demi Lovato joins X Factor USA judges on stage 10005
Demi Lovato joins X Factor USA judges on stage 10006
Demi Lovato joins X Factor USA judges on stage 10007
Demi Lovato joins X Factor USA judges on stage 10008
Demi Lovato joins X Factor USA judges on stage 10009
Demi Lovato joins X Factor USA judges on stage 10010
Demi Lovato joins X Factor USA judges on stage 10011
Demi Lovato joins X Factor USA judges on stage 10012