Black Sheep is a rarities album by American alternative metal band Ra, being their fifth release total, including their live album.

The only previously released song is "Crazy Little Voices".

Rapping is prevalent in the album, especially in the songs "The Foundation", "Busted", "Chained to the Ground", and "Deliverance".

The album's most straight-up, heavy metal song is "Baghdad"; this song is similar to "Parole" from Ra's debut album, From One.

In the outro of "Chained to the Ground", the musicians play a part of Black Sabbath's "War Pigs".