Demi Lovato joins X Factor USA judges on stage 00481
Demi Lovato joins X Factor USA judges on stage 00482
Demi Lovato joins X Factor USA judges on stage 00483
Demi Lovato joins X Factor USA judges on stage 00484
Demi Lovato joins X Factor USA judges on stage 00485
Demi Lovato joins X Factor USA judges on stage 00486
Demi Lovato joins X Factor USA judges on stage 00487
Demi Lovato joins X Factor USA judges on stage 00488
Demi Lovato joins X Factor USA judges on stage 00489
Demi Lovato joins X Factor USA judges on stage 00490
Demi Lovato joins X Factor USA judges on stage 00491
Demi Lovato joins X Factor USA judges on stage 00492