Demi Lovato joins X Factor USA judges on stage 30001
Demi Lovato joins X Factor USA judges on stage 30002
Demi Lovato joins X Factor USA judges on stage 30003
Demi Lovato joins X Factor USA judges on stage 30004
Demi Lovato joins X Factor USA judges on stage 30005
Demi Lovato joins X Factor USA judges on stage 30006
Demi Lovato joins X Factor USA judges on stage 30007
Demi Lovato joins X Factor USA judges on stage 30008
Demi Lovato joins X Factor USA judges on stage 30009
Demi Lovato joins X Factor USA judges on stage 30010
Demi Lovato joins X Factor USA judges on stage 30011
Demi Lovato joins X Factor USA judges on stage 30012