"Christmas in Fallujah" is a single written by Billy Joel and performed by Cass Dillon. A couple of weeks after they recorded it in a studio, Billy Joel introduced Cass Dillon on stage, in Chicago, for a first live performance of the song.
"Christmas in Fallujah" was the second single released in 2007 by Joel, who aside from "All My Life" (also released in 2007) had not released a song with lyrics since 1993. Joel performed "Christmas in Fallujah" live in Australia in November 2008; marking the first time he sang the lyrics to the song instead of Dillon. On December 11, 2008, Joel announced that a new recording of the song that day at Sydney's Acer Arena concert would be released as a download and CD single in honor of the American and Australian soldiers serving in the Middle East. This is the only official recording of Joel singing "Christmas in Fallujah" that is available.