Mastodon (band)

Mastodon is a Grammy-nominated band from Atlanta, Georgia. They are usually classified as a heavy metal group, but there have been debates on what specific sub-genre they belong to. There is also a clear hardcore influence on the band, unsurprising as several of its members previously played in hardcore bands.

Mastodon's style includes heavy (and sometimes quite complex and technical) guitar riffs, complex, jazz-influenced drumming, odd time signatures, and long, melodic instrumental interludes, which are all common aspects of the progressive rock genre. The band's fans have humorously dubbed the genre 'Whalecore', in reference to their 2004 album Leviathan.