Fathers of grunge and sludge metal!
The Melvins are an influential American rock band, their early work was key to the development of both grunge and sludge metal. Vocalist and guitarist Buzz Osborne and drummer Dale Crover have been constant members since 1984.
The band mostly perform as a trio, but in recent years as well as a quartet with two drummers. The new Melvins album, Pinkus Abortion Technician (Ipecac Recordings), features both Steven McDonald and Jeff Pinkus (Butthole Surfers) on bass simultaneously.