Demi Lovato joins X Factor USA judges on stage 27001
Demi Lovato joins X Factor USA judges on stage 27002
Demi Lovato joins X Factor USA judges on stage 27003
Demi Lovato joins X Factor USA judges on stage 27004
Demi Lovato joins X Factor USA judges on stage 27005
Demi Lovato joins X Factor USA judges on stage 27006
Demi Lovato joins X Factor USA judges on stage 27007
Demi Lovato joins X Factor USA judges on stage 27008
Demi Lovato joins X Factor USA judges on stage 27009
Demi Lovato joins X Factor USA judges on stage 27010
Demi Lovato joins X Factor USA judges on stage 27011
Demi Lovato joins X Factor USA judges on stage 27012