Homo Erraticus is the sixth studio album by British progressive rock musician Ian Anderson, who is also the frontman of Jethro Tull. Released on 14 April 2014, Homo Erraticus is a concept album, loosely connected to Jethro Tull's Thick as a Brick (1972) and Anderson's Thick as a Brick 2 (2012), since it again credits the lyrics to the fictional character Gerald Bostock.