Amon Amarth is a Swedish melodic death metal band from Tumba, formed in 1992. The band takes its name from the Sindarin name of Mount Doom, a volcano in J. R. R. Tolkien′s Middle-earth. Their lyrics mostly deal with Viking mythology and history, and so they have been linked with viking metal, although the band themselves prefer to be referred to as melodic death metal. Their first studio album, Once Sent from the Golden Hall, debuted in 1998. Five more studio releases followed, before the band saw its breakthrough with the 2008 album Twilight of the Thunder God, which debuted at No. 10 on the Swedish album charts and No. 50 on the US Billboard 200.