The Detroit Party Marching Band is a guerrilla band based in Detroit, Michigan. The band appears at events unexpectedly. They have played at events such as Mardi Gras in 2012, 2015, and 2017, Theatre Bizarre, Noel Night, Blowout, the Nain Rouge parade, the Hamtramck Labor Day Parade, 2010 Detroit Free Press Marathon, and HONK! in Somerville, Massachusetts, as well as at many bars and parties throughout the Detroit area, both scheduled and unexpectedly. They have supported acts such as Band of Horses, Rebirth Brass Band, and What Cheer? Brigade. They have also tortured the Netherlands in Europe as part of the Cross Linx Music Festival in 2014.