Legacy of The Halo Effect

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.

Machine Head is an American heavy metal band from Oakland, California. The band was formed in 1991 by vocalist/guitarist Robb Flynn, who remains the only original member of the band. Machine Head's aggressive musicianship made it one of the pioneering bands in the new wave of American heavy metal. Its current lineup comprises Flynn, bassist Jared MacEachern, drummer Matt Alston and guitarist Reece Scruggs. Bassist Adam Duce, guitarists Logan Mader, Ahrue Luster, Phil Demmel and Wacław Kiełtyka, and drummers Tony Costanza, Chris Kontos and Dave McClain are former members of the band; Mader and Kontos toured with the band in 2019 and 2020 as part of the 25th anniversary tour for its first album, Burn My Eyes (1994).

The Black Dahlia Murder is an American melodic death metal band from Waterford, Michigan, formed in 2001. Their name is derived from the 1947 unsolved murder of Elizabeth Short, often referred to as Black Dahlia. As of February 2025, the band consists of lead vocalist Brian Eschbach, bassist Max Lavelle, drummer Alan Cassidy, and guitarist Ryan Knight. The Black Dahlia Murder has undergone various lineup changes, with Trevor Strnad and Eschbach remaining the only constant members, until the former's death in 2022, which then saw Eschbach take over lead vocals and Knight replacing him on rhythm guitar.