Demi Lovato joins X Factor USA judges on stage 03537
Demi Lovato joins X Factor USA judges on stage 03538
Demi Lovato joins X Factor USA judges on stage 03539
Demi Lovato joins X Factor USA judges on stage 03540
Demi Lovato joins X Factor USA judges on stage 03541
Demi Lovato joins X Factor USA judges on stage 03542
Demi Lovato joins X Factor USA judges on stage 03543
Demi Lovato joins X Factor USA judges on stage 03544
Demi Lovato joins X Factor USA judges on stage 03545
Demi Lovato joins X Factor USA judges on stage 03546
Demi Lovato joins X Factor USA judges on stage 03547
Demi Lovato joins X Factor USA judges on stage 03548