Demi Lovato joins X Factor USA judges on stage 28513
Demi Lovato joins X Factor USA judges on stage 28514
Demi Lovato joins X Factor USA judges on stage 28515
Demi Lovato joins X Factor USA judges on stage 28516
Demi Lovato joins X Factor USA judges on stage 28517
Demi Lovato joins X Factor USA judges on stage 28518
Demi Lovato joins X Factor USA judges on stage 28519
Demi Lovato joins X Factor USA judges on stage 28520
Demi Lovato joins X Factor USA judges on stage 28521
Demi Lovato joins X Factor USA judges on stage 28522
Demi Lovato joins X Factor USA judges on stage 28523
Demi Lovato joins X Factor USA judges on stage 28524