“When You Were Young” is a song written and performed by The Killers, and is the third track on their second album Sam’s Town, released in October 2006. The song was released as the lead single from that album in September 2006. It has proven to be one of their most successful singles, peaking at #14 on the U.S. Hot 100, as well as their only number 1 to date on the U.S. Modern Rock Tracks. It is also their highest charting single to date in the United Kingdom and Australia, peaking at numbers 2 and 10 respectively.