Biography
There are 2 artists with the name Sludgehammer.
1.The trio SLUDGEHAMMER was formed in 1989 in Pittsburgh. They played some kind of noisy post-hardcore. They disbanded in 1991. Then members went to Don Caballero, Storm & Stress, Karl Hendricks Trio and Thee Speaking Canaries.
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SLUDGEHAMMER was: Karl Hendricks (guitar/vocals), Brian Welcker (bass) and Ian Williams (drums/vocals).
2.SludgeHammer is a grindcore/hardcore band based out of Gaithersburg, Md. Badly recorded songs can be heard at www.myspace.com/gaithersburgsludge
3. A one man band, formerly of the San Francisco Bay Area, currently of Brooklyn, New York. http://www.myspace.com/sludgehammer
4. Groovy death metal from Toronto: "SludgeHammer are Heavy Metal band from Toronto. Formed in 2013, they are about to release their 5 song self titled demo. Some full length tracks are already out, Check them out on facebook, reverbnation or bandcamp!" https://sludgehammermusic.bandcamp.com/
Biography text from Last.fm, available under CC BY-SA.