The Detroit Party Marching Band is a guerrilla band based in Detroit, Michigan. The band appears at events unexpectedly. The band has played at events such as Mardi Gras (2012), Theatre Bizarre, Noel Night, Blowout!, the Nain Rouge parade, the Hamtramck Labor Day Parade, 2010 Detroit Free Press Marathon, and HONK! in Somerville, MA, as well as at many bars and parties throughout the Detroit area, both scheduled and unexpectedly.