Lethargy was a technical death metal band formed in Rochester, New York in 1992 and disbanded in December 1999. Their last performance was on Christmas night of 1999. Drummer Brann Dailor and guitarist Bill Kelliher would later appear in Today Is the Day and Mastodon. Guitarist and vocalist Erik Burke is currently active in Nuclear Assault, Sulaco, Kalibas, Brutal Truth, and B.C.T. (Blatant Crap Taste).