Mastodon playing The Czar live in Hultsfred, Sweden.
Mastodon is an American metal band from Atlanta, Georgia, formed in early 2000 and is composed of bassist Troy Sanders, guitarist Brent Hinds, guitarist Bill Kelliher and drummer Brann Dailor. Many of their songs feature progressive concepts and unique instrumentation with a mix of clean vocals and screaming vocals. Three out of the four members participate in vocals, creating a unique blend of singing styles and voices.