We've seen rappers dip their toes in heavy metal. Sometimes it works great. For instance, T-Pain's recent cover of Black Sabbath's "War Pigs" got a shout out from none other than Geezer Butler. But ...

Statisticians have a peculiar fascination with heavy metal. It’s what has allowed us to learn that wealthy nations have the most metal bands and that Scandinavia conquers them all, but what about the ...