Mastodon is an American prog / technical 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 number of other records.