The third batch of downloadable content for Rock Band has gone live on Xbox 360, offering tracks from legendary metal band Black Sabbath. The tracks are “N.I.B.”, “Sweet Leaf” and “War Pigs”, all of which can be purchased individually for 160 Microsoft points each, or as a three-song bundle at 440 Microsoft points.

The tracks aren’t out on the PS3 yet, but are expected online in this week’s Thursday update to the PlayStation Store. Songs slated to arrive in the coming weeks include tracks from Ramones, Radiohead, Weezer and more.