At the age of 13, when living in Australia with his family, O'Rourke was given his first guitar by a priest in Kyabram who recognised his potential and love for music, hence the title of his debut album Since Kyabram, released in October 2004. The album's launch took place over three sold-out nights in Whelan’s of Wexford St, Dublin and was broadcast live on national radio. Since Kyabram entered the official Irish album charts at Number 5 and was the only new Irish entry in the Top 75 album chart that week.