Mary Bell are a sludge band from Utrecht, Holland. They started out in 2004 from the ashes of Sweet Willy Rollbar - most probably one of Holland's first sludge bands. Mary Bell sounds heavy, sludgy and noisy and are often considered a sludge/doom band. The band's first full-length record titled 'Mary Bell' was recorded in summer 2005 and was released on the Spanish label Trabuc Records. This album was recorded as a five piece, with two vocalists.