'''Mastodon''' is an American [[progressive metal]] band from Atlanta. Georgia, formed in early 2000 and composed of bassist [[Troy Sanders]], guitarists [[Brent Hinds]] and [[Bill Kelliher]] and drummer [[Brann Dailor]]. Their musical style features progressive concepts and unique instrumentation. All four members participate in vocals, creating a unique blend of singing styles and voices. Mastodon has released six studio albums, as well as a [[Mastodon discography|number of other records]]. The band's debut album, ''[[Remission]]'', released in 2002, garnered significant critical acclaim for its unique sound.<ref>{{cite web|author= |url=http://loudwire.com/mastodon-remission-best-debut-metal-albums/ |title=No. 17: Mastodon, ‘Remission’ – Best Debut Metal Albums |publisher=Loudwire.com |date=2013-06-06}}</ref> Mastodon's second full-length release, ''[[Leviathan (album)|Leviathan]]'', is a concept album based on the novel ''Moby-Dick'' by Herman Melville. Three magazines awarded the record ''Album of the Year'' in 2004: ''Revolver'', ''Kerrang!'' and ''Terrorizer''. The song "[[Colony of Birchmen]]" from the band's 2006 third album, ''[[Blood Mountain]]'', was nominated for a Grammy Award for Best Metal Performance in 2007. ''Blood Mountain'' was followed in 2009 by ''[[Crack the Skye]]'', and in 2011 by ''[[The Hunter]]'', which achieved major commercial success in the United States, debuting at No. 10 on the ''Billboard'' 200 chart. ''The Hunter'' features the song "[[Curl of the Burl]]", which was nominated for a Grammy for Best Hard Rock/Metal Performance in 2012. Mastodon's 2014 full-length, ''[[Once More 'Round the Sun]]'', peaked at No.&nbsp;6 on the Billboard 200 chart<ref>{{cite news|title=Pop Friction: Mastodon Delivers its Highest Charting Album to Date, But That's Not Exactly a Reason for Total Band Bliss|last=Molenda|first=Michael|date=August 2015|work=Guitar Player|pages=28–32}}</ref> and features the band's third Grammy-nominated song, "[[High Road]]".