Internal Bleeding are pioneers of the style of death metal called "slam", based in Long Island, New York. Their sound has paved the way for a whole generation of death metal and death-core bands who put heavy, groove laden riffs in the forefront of their music. Internal Bleeding was formed in 1991 with a short-lived original lineup of guitarist Chris Pervelis, bassist Tom Slobowski, vocalist Brian Richards, drummer Bill Tolley, and guitarist Anthony Miola; Slobowski and Richards were quickly replaced by John Colucco and Eric Wigger