Roots of Overkill

Kreator is a German thrash metal band from Essen, formed in 1982. Their current line-up consists of lead vocalist and rhythm guitarist Miland "Mille" Petrozza, drummer Jürgen "Ventor" Reil, lead guitarist Sami Yli-Sirniö, and bassist Frédéric Leclercq. The band's line-up has changed multiple times throughout its 44-year career, most noticeably their bassists and lead guitarists. Petrozza and Reil are the only two original members left in Kreator, although the latter left the band in 1994 but rejoined in 1996. Yli-Sirniö has been the lead guitarist of Kreator since 2001, while Leclercq joined in 2019 as the replacement of Christian "Speesy" Giesler, who had been in the band since 1994.

Death Angel is a Filipino-American thrash metal band from Daly City, California, initially active from 1982 to 1991 and again since 2001. They have released nine studio albums, two demo tapes, one box set and three live albums. The band has gone through several lineup changes, leaving guitarist Rob Cavestany as the only constant member; he and vocalist Mark Osegueda are the only members who appear on all of their studio albums.

Kat is a Polish heavy metal band formed in Katowice in 1979.

Flotsam and Jetsam is an American thrash metal band that was formed in Phoenix, Arizona, in 1981. Before settling on its name in 1984, the band was known as Paradox, Dredlox and The Dogz. Their latest lineup includes vocalist Eric "A.K" Knutson, guitarists Michael Gilbert and Steve Conley, bassist Bill Bodily, and drummer Ken Mary. Flotsam and Jetsam went through several lineup changes over the years, leaving Knutson as the only constant member. They featured a then-unknown Jason Newsted as their bassist from 1981 to 1986, when he left the band shortly after the release of their debut album to join Metallica.

The Dead Boys are an American punk rock band from Cleveland, Ohio. The band was among the first wave of punk, and regarded by many as one of the rowdiest and most violent groups of the era. They were formed in 1975 by vocalist Stiv Bators, rhythm guitarist Jimmy Zero, bassist Jeff Magnum, lead guitarist Cheetah Chrome, and drummer Johnny Blitz—the latter two having splintered from the band Rocket from the Tombs. The original Dead Boys released two studio albums: Young, Loud and Snotty and We Have Come for Your Children.

Riot! is the second studio album by the American rock band Paramore. It was released in the United States on June 12, 2007, through Fueled by Ramen as a follow-up to the band's debut album, All We Know Is Falling (2005). The album was produced by David Bendeth and written primarily by band members Hayley Williams and Josh Farro, with Bendeth. The album explores a "diverse range of styles", while not straying far from the "signature sound" of their debut album, with several critics comparing it to the music of Kelly Clarkson and Avril Lavigne.

Nuclear Assault was an American thrash metal band formed in New York City in 1984. Part of the mid-to-late 1980s thrash metal movement, they were one of the main bands of the genre to emerge from the East Coast, along with Overkill, Whiplash, Toxik, Carnivore, and Anthrax, the last of which was co-founded by Nuclear Assault bassist Dan Lilker, who had been fired from Anthrax shortly after the release of their first album. Nuclear Assault released five full-length albums and toured relentlessly throughout the 1980s and early 1990s, and broke up in 1995. The band reunited briefly in 1997, and permanently from 2001 to 2008 and again from 2011 to 2022.

Megadeth is an American heavy metal band formed in Los Angeles in 1983 by vocalist and guitarist Dave Mustaine. Known for their technically complex guitar work and musicianship, Megadeth is one of the "big four" of American thrash metal—along with Slayer, Anthrax, and Metallica—and is credited with helping to develop and popularize the genre. Their music features intricate arrangements, fast rhythm sections, dual lead guitars, and lyrical themes such as war, conflicts, politics, religion, death, and personal relationships.

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.

Exodus is an American thrash metal band formed in 1979 in Richmond, California. Their current lineup consists of guitarists Gary Holt and Lee Altus, bassist Jack Gibson, drummer Tom Hunting and lead vocalist Rob Dukes. Notable former members of the band include vocalists Paul Baloff and Steve "Zetro" Souza, drummers John Tempesta and Paul Bostaph, and founding guitarist Kirk Hammett who later joined fellow Bay Area thrash metal band Metallica. There are no original members left in Exodus other than Hunting, who had departed from the band twice, in 1989 and 2004, but rejoined in 2007. Holt, who has been in the band since 1981, is the only member to appear on every Exodus album. Much of the band's career has been affected by lineup changes, feuds between both band members and record companies, two extended hiatuses, deaths of former band members, and drug addictions.

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.

Christopher Michael Oliva was an American musician who was the lead guitarist and co-founder of the heavy metal band Savatage. During his lifetime, he released seven studio albums and one EP with the band.