25. El-P, Cancer 4 Cure

Label: Fat Possum
Art Director: Ron Groudy
It's a bird? A plane? No, it's just pieces of broken glass on El-P's album cover. The image was in fact drawn by Alexander Calder, one of the most famous American sculptors. As it turns out, El-P's parents were heavily into the art scene when he was growing up (he claims they used to hang out with Robert Crumb).

El's mother got Calder to draw a few images for her then one-year-old son, which have since appeared on his various album covers, this year's C4C being no exception.