Demi Lovato joins X Factor USA judges on stage 28481
Demi Lovato joins X Factor USA judges on stage 28482
Demi Lovato joins X Factor USA judges on stage 28483
Demi Lovato joins X Factor USA judges on stage 28484
Demi Lovato joins X Factor USA judges on stage 28485
Demi Lovato joins X Factor USA judges on stage 28486
Demi Lovato joins X Factor USA judges on stage 28487
Demi Lovato joins X Factor USA judges on stage 28488
Demi Lovato joins X Factor USA judges on stage 28489
Demi Lovato joins X Factor USA judges on stage 28490
Demi Lovato joins X Factor USA judges on stage 28491
Demi Lovato joins X Factor USA judges on stage 28492