Roots of Skyclad

Overkill is an American thrash metal band, formed in 1980 in New Jersey. They have gone through many lineup changes, leaving bassist D.D. Verni and lead vocalist Bobby "Blitz" Ellsworth as the only remaining original members. The band's current lineup includes Verni, Ellsworth, Dave Linsk on lead guitar, Derek "The Skull" Tailer on rhythm guitar, and Jeramie Kling on drums. Notable former members include guitarists Dan Spitz, Bobby Gustafson, Merritt Gant and Joe Comeau, and drummers Rat Skates and Jason Bittner.

Tiamat is a Swedish metal band founded near Stockholm in 1990 and led by Johan Edlund. To date they have released ten studio albums. The band went through a number of stylistic changes in their earlier releases before settling on gothic metal. Under Edlund's leadership, the band would modify their style with influences ranging from Black Sabbath, Mercyful Fate, Candlemass, Pink Floyd and King Crimson combined with Sumerian lyrical themes. H. P. Lovecraft's writings also appear to have influenced Tiamat's thematology, a development consistent with a broader trend in death metal culture.