Black Sabbath have expanded their up coming world tour plans with the announcement of dates for a South American tour this fall. The band will play four shows starting October 4 in Santiago, Chile, with three stops in Brazil: Port Alegre (Oct 9), Sao Paulo (Oct 11) and Rio de Janeiro (Oct 13). The dates are in support of Sabbath's forthcoming new album, "13," due June 11. The project's lead single, "God Is Dead?", is out now.