Demi Lovato joins X Factor USA judges on stage 20001
Demi Lovato joins X Factor USA judges on stage 20002
Demi Lovato joins X Factor USA judges on stage 20003
Demi Lovato joins X Factor USA judges on stage 20004
Demi Lovato joins X Factor USA judges on stage 20005
Demi Lovato joins X Factor USA judges on stage 20006
Demi Lovato joins X Factor USA judges on stage 20007
Demi Lovato joins X Factor USA judges on stage 20008
Demi Lovato joins X Factor USA judges on stage 20009
Demi Lovato joins X Factor USA judges on stage 20010
Demi Lovato joins X Factor USA judges on stage 20011
Demi Lovato joins X Factor USA judges on stage 20012