Flatfoot 56 is an American Celtic punk band formed in Chicago, Illinois in 2000. Known for their use of Scottish Highland bagpipes, the group performs an Oi! and Celtic punk sound similar to Dropkick Murphys and Flogging Molly. They have released seven studio albums and seven extended plays; their fifth album, Black Thorn (2010), debuted at No. 2 on the Billboard Heatseekers chart and No. 160 on the Billboard 200 at.

Source: Wikipedia (https://en.wikipedia.org/wiki/Flatfoot_56)