Judas Priest vs. Slayer by proxy aborigonal gang wars. Seriously.

From Vice magazine:

Violent riots had erupted between two of the town’s largest gangs and for a moment it looked like the Australian Army…was going to have to be brought in…what really blew us away was that the town…was split up into gangs named after heavy metal bands. There were the Judas Priest Boys, the Evil Warriors, and the Slayer Mob.

via