"Chelsea Dagger" is a song by Scottish rock band The Fratellis. It was released as the second single from their debut studio album, Costello Music (2006), on 28 August 2006. It is named after Jon Fratelli's wife Heather, a burlesque dancer whose stage name – a play on Britney Spears – he borrowed for the song. Fratelli described the tune as "a rock 'n' roll gig in an old speakeasy or something like that." This song was number 77 on Rolling Stone's list of the 100 Best Songs of 2007. "Chelsea Dagger" has become notable for its usage in sports. Read more on Last.fm.