Playing a positive-natured brand of hardcore-tinged Celtic punk, Flatfoot 56 has been unleashing itself upon America and the rest of the world for over 10 years now. Forming in 2000, the Chicago natives achieved nationwide attention with their first two label-backed records, 2006’s Knuckles Up and 2007’s Jungle of the Midwest Sea. These releases built on a heavy dose of previously established regional notoriety, helping the band gain steam early on.