Now even if you have heard of Metric I think the amount of people having heard Black Sheep is low. This song was sung on the tours, and released on the "Scott Pilgrim vs. The World" soundtrack and not currently on any of Metric's released albums. Maybe not my favorite song by them but definitely up there. If you want to hear more Metric I recommend listening to their "Fantasies" album. it contains many of their more well known songs and many of my favorites.