Warrior's Code is the fifth studio album by the Irish-American Celtic punk band, the Dropkick Murphys. Released in June 2005, it is also their bestselling. It features a dedication to Lowell's own Irish Micky Ward who is featured on the album's cover and is the subject of the album's title track. It is also their final record with Hellcat Records before moving to their own vanity label, Born & Bred Records. The album features one of the band's biggest and most well known singles, I'm Shipping Up to Boston, which the band originally released on the Fields of Athenry single, although it re-recorded it for The Warrior's Code. Transparent brown vinyl. Audio