Zac will step in for regular drummer Ethan Luck, who confirmed the news on Twitter yesterday: "Not doing AUS. Zac is filling in." At the moment of writing it is unknown why Ethan won't join his band on tour.

Sanctus Real bassist Dan Gartley posted an update on Instagram, stating he a great time rehearsing with Relient K for a trip to Australia and featuring Zac as drummer in the band's touring line-up.