Haverly's United Mastodon Minstrels walkers, and minstrels in elephant costumes. Haverly's United Mastodon Minstrels saw great success, and the impact on minstrelsy was profound. Other troupe owners rushed to compete, mimicking the Mastodons' elaborate sets and large number of players. Ultimately, many smaller companies folded or were forced to travel further from the established minstrel circuits in order to survive. Haverly's United Mastodon Minstrels Haverly's United Mastodon Minstrels was a blackface minstrel troupe created in 1877, when J. H. Haverly merged four of the companies he owned and managed. Borrowing techniques from showmen like P. T. Barnum, Haverly advertised the Mastodons in broadsides, newspapers,
Mastodon (band) audience. Drummer Brann Dailor sings lead vocals for the verses of the song "Oblivion". Mastodon was a headliner at the Scion Rock Fest on February 28, 2009, performing a set containing three tracks from "Crack the Skye", the first time these songs were played since being finalized and recorded. On May 15, 2009, Mastodon performed a shortened version of "Oblivion" on the "Late Show with David Letterman". In order to support their new album, Mastodon toured with Metallica on the latter part of the 2009 European leg of their World Magnetic Tour. In Fall of 2009, they embarked with Dethklok