Demi Lovato joins X Factor USA judges on stage 18481
Demi Lovato joins X Factor USA judges on stage 18482
Demi Lovato joins X Factor USA judges on stage 18483
Demi Lovato joins X Factor USA judges on stage 18484
Demi Lovato joins X Factor USA judges on stage 18485
Demi Lovato joins X Factor USA judges on stage 18486
Demi Lovato joins X Factor USA judges on stage 18487
Demi Lovato joins X Factor USA judges on stage 18488
Demi Lovato joins X Factor USA judges on stage 18489
Demi Lovato joins X Factor USA judges on stage 18490
Demi Lovato joins X Factor USA judges on stage 18491
Demi Lovato joins X Factor USA judges on stage 18492