Mastodon is a Grammy Award-nominated heavy metal band from Atlanta, Georgia. They are one of the most notable bands in the New Wave of American Heavy Metal. They were formed in 1999 by Troy Sanders, Brent Hinds, Bill Kelliher, Brann Dailor and original vocalist Eric Saner. They have released four full-length albums and have toured worldwide, achieving increased album sales and an ever expanding fan base with each new release.