Hanson rounded off a hugely successful Aus/NZ leg of their Anthem world tour by stopping off at X Factor Aus. They performed Mmmbop and Get the Girl Back with the contestants. #HansonSelfie #xfactorau 7.30pm TONIGHT #Channel7 pic.twitter.com/0vFydmmjp6 — The X Factor Aus (@thexfactor_au) August 18, 2014 Thank so much to @xfactor_au for having us tonight. […]