Melvins are an American rock band formed in 1983, in Montesano, Washington. Their early work was key to the development of both grunge and sludge metal. They originally performed as only a trio but later also sometimes appeared as a quartet with either two drummers or two bassists. Since 1984, vocalist and guitarist Buzz Osborne and drummer Dale Crover have been constant members. The band was named after a supervisor at a Thriftway in Montesano, where Osborne also worked as a clerk; "Melvin" was disliked by other employees, and the band's members felt it to be an appropriately ridiculous name.