Mastodon releases Crack the Skye

Crack the Skye is the fourth studio album by American progressive metal band Mastodon, released on March 24, 2009 through Reprise Records.

It features seven tracks and runs at 50 minutes and 3 seconds. The album debuted at number 11 on the Billboard 200, selling 41,000 copies in its first week. In Australia, the album debuted at number 19. It has sold 166,000 copies to date.