Demi Lovato joins X Factor USA judges on stage 26981
Demi Lovato joins X Factor USA judges on stage 26982
Demi Lovato joins X Factor USA judges on stage 26983
Demi Lovato joins X Factor USA judges on stage 26984
Demi Lovato joins X Factor USA judges on stage 26985
Demi Lovato joins X Factor USA judges on stage 26986
Demi Lovato joins X Factor USA judges on stage 26987
Demi Lovato joins X Factor USA judges on stage 26988
Demi Lovato joins X Factor USA judges on stage 26989
Demi Lovato joins X Factor USA judges on stage 26990
Demi Lovato joins X Factor USA judges on stage 26991
Demi Lovato joins X Factor USA judges on stage 26992