Roots of 36 Crazyfists

Killswitch Engage is an American metalcore band from Westfield, Massachusetts, formed in 1999. The band's current lineup consists of vocalist Jesse Leach, guitarists Joel Stroetzel and Adam Dutkiewicz, bassist Mike D'Antonio, and drummer Justin Foley. Howard Jones was the band's lead vocalist from 2002 to 2012.

Sacramento heavyweights whose alt-metal absorbed shoegaze and dream pop.

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.

Testament is an American thrash metal band from Berkeley, California. Formed in 1983 under the name Legacy, the band's current lineup includes rhythm guitarist Eric Peterson, lead vocalist Chuck Billy, lead guitarist Alex Skolnick, bassist Steve Di Giorgio and drummer Chris Dovas. Testament has experienced many lineup changes over the years, with Peterson being the only remaining original member. The band has released fourteen studio albums, four live albums, five compilation albums, thirteen singles and three DVDs. They are estimated to have sold over 1.4 million albums in the United States since the beginning of the SoundScan era, and over 14 million copies worldwide as of 2016.

Pantera is an American heavy metal band formed in Arlington, Texas, in 1981 by the Abbott brothers, and currently composed of vocalist Phil Anselmo, bassist Rex Brown, and touring musicians Zakk Wylde and Charlie Benante. The group's best-known lineup consisted of the Abbott brothers along with Brown and Anselmo, who joined in 1982 and 1986, respectively. The band is credited for developing and popularizing the subgenre of groove metal in the 1990s. Regarded as one of the most successful and influential bands in heavy metal history, Pantera has sold around 20 million records worldwide and has received four Grammy nominations.

Helmet is an American alternative metal band from New York City formed in 1989 by vocalist and lead guitarist Page Hamilton. Helmet has had numerous lineup changes with Hamilton as the only constant member. Since 2010, the band has consisted of Hamilton, drummer Kyle Stevenson, guitarist Dan Beeman and bassist Dave Case.

Champaign, IL space-rockers — heavy chords, huge distances.

Kittie is a Canadian heavy metal band from London, Ontario. The band was formed in 1996 by guitarist Fallon Bowman and drummer Mercedes Lander, with guitarist and vocalist Morgan Lander and bassist Tanya Candler joining the following year. Morgan and Mercedes have remained the band's sole constant members, with their current lineup featuring guitarist Tara McLeod and bassist Ivana "Ivy" Jenkins. As of 2026, Kittie are estimated to have sold more than one or two million albums worldwide.