Roots of Ra

The Union Underground is an American nu metal band based out of San Antonio, Texas. Original band members included Bryan Scott, Patrick Kennison, John Moyer and Josh Memolo. They released one major label album, ...An Education in Rebellion, in 2000 which featured the hit singles "Turn Me On 'Mr. Deadman'" and Revolution Man, as well as the fan-favorite "South Texas Deathride". They are also known for their single "Across the Nation" which was featured as the theme for WWE Raw from 2002 to 2006.

Puffy AmiYumi, or PUFFY, are a Japanese pop rock duo formed in Tokyo in 1995, consisting of singers Ami Ōnuki and Yumi Yoshimura. In the United States, they adopted the name Puffy AmiYumi to avoid legal naming conflicts with Sean Combs, who also performed under the name Puffy. The duo sings in Japanese, English, and Mandarin Chinese.

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.

Rage Against the Machine was an American rock band formed in Los Angeles, California, in 1991. It consisted of vocalist Zack de la Rocha, bassist and backing vocalist Tim Commerford, guitarist Tom Morello, and drummer Brad Wilk. They melded heavy metal, rap, punk rock, and funk with anti-authoritarian, anti-capitalist, and revolutionary lyrics. As of 2010, they had sold over 16 million records worldwide. They were inducted into the Rock and Roll Hall of Fame in 2023.

Seether are a South African rock band founded in 1999 in Pretoria, Gauteng. The band originally performed under the name Saron Gas until 2002 and changed it to Seether to avoid confusion with the deadly chemical known as sarin gas. Lead vocalist and guitarist Shaun Morgan is the band's only remaining original member. Bassist Dale Stewart joined a year after formation, while drummer John Humphrey joined them for the band's second album. Since 2018, the band has been employing second guitarist Corey Lowery. Several notable guitarists such as Corey's brother Clint and Troy McLawhorn have toured or recorded with the band; however, Morgan has recorded most guitar parts for the band's records.

Meshuggah is a Swedish extreme metal band formed in Umeå in 1987. Since 2004, the band's lineup consists of founding members Jens Kidman and Fredrik Thordendal, alongside rhythm guitarist Mårten Hagström, drummer Tomas Haake and bassist Dick Lövgren. Since its formation, the band has released nine studio albums, six EPs and eight music videos. Their latest studio album, Immutable, was released in April 2022 via Atomic Fire Records.