Demi Lovato joins X Factor USA judges on stage 17037
Demi Lovato joins X Factor USA judges on stage 17038
Demi Lovato joins X Factor USA judges on stage 17039
Demi Lovato joins X Factor USA judges on stage 17040
Demi Lovato joins X Factor USA judges on stage 17041
Demi Lovato joins X Factor USA judges on stage 17042
Demi Lovato joins X Factor USA judges on stage 17043
Demi Lovato joins X Factor USA judges on stage 17044
Demi Lovato joins X Factor USA judges on stage 17045
Demi Lovato joins X Factor USA judges on stage 17046
Demi Lovato joins X Factor USA judges on stage 17047
Demi Lovato joins X Factor USA judges on stage 17048