Demi Lovato joins X Factor USA judges on stage 05481
Demi Lovato joins X Factor USA judges on stage 05482
Demi Lovato joins X Factor USA judges on stage 05483
Demi Lovato joins X Factor USA judges on stage 05484
Demi Lovato joins X Factor USA judges on stage 05485
Demi Lovato joins X Factor USA judges on stage 05486
Demi Lovato joins X Factor USA judges on stage 05487
Demi Lovato joins X Factor USA judges on stage 05488
Demi Lovato joins X Factor USA judges on stage 05489
Demi Lovato joins X Factor USA judges on stage 05490
Demi Lovato joins X Factor USA judges on stage 05491
Demi Lovato joins X Factor USA judges on stage 05492