"We've never been interested in writing [our] previous record 'Part 2.'" — Brann Dailor

• Band members: Brann Dailor, Brent Hinds, Bill Kelliher, Troy Sanders
   
• Formed in 2000 in Atlanta
   
• Mastodon's third studio album, 2006's Blood Mountain,  was their first to reach the Top 40, peaking at No. 32 on the Billboard 200.
   
• Mastodon received their first GRAMMY nomination for 2006 for Best Metal Performance for "Colony Of Birchmen."
   
• The group's 2004 album, Leviathan, is loosely based on the Herman Melville novel Moby Dick.