Earlier this year the great Mastodon released “Once More ‘Round The Sun” to the masses and the fans responded in a huge way! The record sold around 34,000 copies in the United States in its first week to land at position No. 6 on The Billboard 200 chart, which was their highest debut ever! Since it’s release they’ve been touring all over, including an appearance on “Jimmy Kimmel Live!” that you can watch below, and they will be returning to late night television later this month! Mastodon has announced they will perform their new single, “The Motherload,” on The Late Show With David Letterman on Monday, October 27th! So mark your calendars and support one of the best acts in all of music!