Demi Lovato joins X Factor USA judges on stage 27445
Demi Lovato joins X Factor USA judges on stage 27446
Demi Lovato joins X Factor USA judges on stage 27447
Demi Lovato joins X Factor USA judges on stage 27448
Demi Lovato joins X Factor USA judges on stage 27449
Demi Lovato joins X Factor USA judges on stage 27450
Demi Lovato joins X Factor USA judges on stage 27451
Demi Lovato joins X Factor USA judges on stage 27452
Demi Lovato joins X Factor USA judges on stage 27453
Demi Lovato joins X Factor USA judges on stage 27454
Demi Lovato joins X Factor USA judges on stage 27455
Demi Lovato joins X Factor USA judges on stage 27456