Volcano Choir is an American indie rock band from Wisconsin, formed in 2005. The band began as a collaboration between Bon Iver's Justin Vernon and members of Collections of Colonies of Bees. Their debut album, Unmap, was released on September 22, 2009, reaching number 92 on the Billboard Top 200 chart.Since the band's formation, Jon Mueller (Death Blues) and Thomas Wincek (of All Tiny Creatures) have left Collections of Colonies of Bees, but continue to be members of Volcano Choir.