Robot band Compressorhead is touted as ‘The World’s Heaviest Metal Band’ for good reason, they are literally made out of metal. Created in Germany in 2007 by Robocross Machines, the band started with Stickboy the four armed drummer, then added Fingers (guitar) in 2009 and Bones (bass) in 2012. They will perform at Big Day Out Festival in Australia later this month. Watch the boys rock out with their cover of Motörhead’s Ace of Spades: