The Roots have announced their upcoming 13th album Undun, releasing via Def Jam Records in December of this year. They started working on the album this past Thursday, October 6th..

"UNDUN, our first ever concept album, will be released Tue December 6th, 2011 via Def Jam," wrote the band on their Facebook page. "Mark your calendars folks and stay tuned for more info, music, artwork, and more."