Passage: On December 11, 2008, Joel recorded his own rendition of "Christmas in Fallujah" during a concert at Acer Arena in Sydney and released it as a live single in Australia only. It is the only official release of Joel performing "Christmas in Fallujah", as Cass Dillon sang on the 2007 studio recording and the handful of times the song was played live in 2007. Joel sang the song throughout his December 2008 tour of Australia.

Question: when did Joel sing the song?
throughout his December 2008 tour