Spiritual Beggars is a stoner metal band from Halmstad, Sweden, formed by Michael Amott, who is known from Arch Enemy, Carcass and Carnage. The band is heavily influenced by 1970s hard rock and incorporates elements of psychedelia into its music.

Carcass are an English extreme metal band from Liverpool, formed in 1985. The band have gone through several line-up changes, leaving guitarist Bill Steer and bassist-vocalist Jeff Walker as the only constant members. They broke up in 1996, but reformed in 2007 without original drummer Ken Owen, due to health reasons. To date, the band have released seven studio albums, two compilation albums, four EPs, two demo albums, one video album, and six music videos.