Mastodon

are an American metal band formed in Atlanta, Georgia, in 2000. Blending sludge metal, progressive metal, and heavy metal with psychedelic and experimental elements, they are known for intricate musicianship, shifting structures, and ambitious songwriting. Albums such as 'Leviathan', 'Crack the Skye', and 'Emperor of Sand' trace their evolution from crushing heaviness toward increasingly expansive and melodic territory.