Declan is a singer-songwriter from Dublin, Ireland. His family spent several years in Australia during his youth. It was during their time in Kyabram that the young O'Rourke was given his first guitar, by a priest who recognized his potential and love for music. Hence the title of his debut album Since Kyabram, released in October 2004.
The album's launch sold-out 3 nights in Whelan's, Dublin and was broadcast live on national radio.Since Kyabram entered the official Irish album charts at Number 5, quickly went gold, then achieved double-platinum status. Since then, O?Rourke has completed multiple sell-out nationwide Irish tours, the second of these culminating in a full capacity show in Dublin?s Olympia Theatre in March 2005.