Demi Lovato joins X Factor USA judges on stage 08513
Demi Lovato joins X Factor USA judges on stage 08514
Demi Lovato joins X Factor USA judges on stage 08515
Demi Lovato joins X Factor USA judges on stage 08516
Demi Lovato joins X Factor USA judges on stage 08517
Demi Lovato joins X Factor USA judges on stage 08518
Demi Lovato joins X Factor USA judges on stage 08519
Demi Lovato joins X Factor USA judges on stage 08520
Demi Lovato joins X Factor USA judges on stage 08521
Demi Lovato joins X Factor USA judges on stage 08522
Demi Lovato joins X Factor USA judges on stage 08523
Demi Lovato joins X Factor USA judges on stage 08524