Roots of Jeris Johnson

Amon Amarth are a Swedish melodic death metal band from Tumba, formed in 1992. The band takes their name from the Sindarin name of Mount Doom, a volcano in J. R. R. Tolkien's Middle-earth. Their lyrics are mostly themed around Viking mythology and history, and so they are sometimes labelled "Viking metal", though they are musically melodic death metal, a term the band also prefers. Amon Amarth is composed of lead guitarist Olavi Mikkonen, vocalist Johan Hegg, bassist Ted Lundström, rhythm guitarist Johan Söderberg, and drummer Jocke Wallgren.

Lamb of God is an American heavy metal band from Richmond, Virginia. Formed in 1994 as Burn the Priest, the group consists of bassist John Campbell, vocalist Randy Blythe, guitarists Mark Morton and Willie Adler, and drummer Art Cruz. The band is considered a significant member of the new wave of American heavy metal movement.

Slayer is an American thrash metal band from Huntington Park, California, formed in 1981 by guitarists Kerry King and Jeff Hanneman, drummer Dave Lombardo and vocalist/bassist Tom Araya. Slayer's fast and aggressive musical style made them one of the "big four" bands of thrash metal, alongside Metallica, Megadeth, and Anthrax. Slayer's current lineup comprises King, Araya, drummer Paul Bostaph, and guitarist Gary Holt, who initially joined as a touring musician in 2011 before joining the band permanently after Hanneman's death in 2013; the drummer Jon Dette is a former member of the band.