Guitarists Frank Rodriguez and Mike Elwood, singer Kevin Mahoney and drummer Jeff Gefroerer all met at St. Francis High School in Mountain View, California in 1982 and began playing cover versions soon. Soon after the band was playing shows at Palo Alto, Berkeley, San Francisco and Monterey. The quintet had a six-song demo in 1984. Dennis and Phil from Midwest Militia Magazine connected the band with Bill Peters from Auburn Records. Kevin Mahoney (later in the band Sane) was replaced with Dave Hughes. The band's sole album was released by Ohio-based Auburn Records at the tail end of 1985 and the band opened for Metallica, Tygers Of Pan Tang, Steeler, Armored Saint and others.
Havoc was an American band whose musical style could be discerned by listing song titles like Bullets and Thrasher. The band was active between 1982 and 1987. By the time the group disbanded the line-up had seen line-up changes on drums, vocals, and bass. There were two reunion shows in San Jose, California in the early 90's.