"Chelsea Dagger" is a song by the band The Fratellis, released in 2006 as part of their debut album, Costello Music. The upbeat rock track features catchy melodies and energetic instrumentation, making it popular in various media, including sports events and television shows. The song gained significant recognition as the goal celebration anthem for the Chicago Blackhawks, an NHL team. Its infectious chorus and lively rhythm have made it a staple at games, where fans often sing along, creating an electrifying atmosphere in the arena.