Fat Day is a Boston-based gamma metal and noisecore band. Formed in Cambridge, MA in 1992, they were associated with bands like Swirlies, Kudgel, and Trollin Withdrawal who formed the core of the short-lived Boston "chimp" scene. Fat Day released three LPs and several EPs on the local 100% breakfast! label before 2002's IV came out on Portland, OR's Dark Beloved Cloud and 2004's Unf! Unf! on the Providence noise label Load Records. Fat Day has toured the U.S. several times, the U.K. and Ireland in 1997, and Japan in 1998.