High Quality Content by WIKIPEDIA articles! Phrenology is the fifth studio album by American hip hop band The Roots, released November 26, 2002, on Geffen Records and MCA Records. Recording sessions for the album took place during June 2000 to September 2002. It was primarily produced by members of the band and features contributions from hip hop and neo soul artists such as Cody ChesnuTT, Musiq Soulchild, Talib Kweli, and Jill Scott.