Demi Lovato joins X Factor USA judges on stage 09585
Demi Lovato joins X Factor USA judges on stage 09586
Demi Lovato joins X Factor USA judges on stage 09587
Demi Lovato joins X Factor USA judges on stage 09588
Demi Lovato joins X Factor USA judges on stage 09589
Demi Lovato joins X Factor USA judges on stage 09590
Demi Lovato joins X Factor USA judges on stage 09591
Demi Lovato joins X Factor USA judges on stage 09592
Demi Lovato joins X Factor USA judges on stage 09593
Demi Lovato joins X Factor USA judges on stage 09594
Demi Lovato joins X Factor USA judges on stage 09595
Demi Lovato joins X Factor USA judges on stage 09596