Demi Lovato joins X Factor USA judges on stage 12001
Demi Lovato joins X Factor USA judges on stage 12002
Demi Lovato joins X Factor USA judges on stage 12003
Demi Lovato joins X Factor USA judges on stage 12004
Demi Lovato joins X Factor USA judges on stage 12005
Demi Lovato joins X Factor USA judges on stage 12006
Demi Lovato joins X Factor USA judges on stage 12007
Demi Lovato joins X Factor USA judges on stage 12008
Demi Lovato joins X Factor USA judges on stage 12009
Demi Lovato joins X Factor USA judges on stage 12010
Demi Lovato joins X Factor USA judges on stage 12011
Demi Lovato joins X Factor USA judges on stage 12012