It’s not every day we get to interview a cartoon. OK, we’ve never interviewed a cartoon. But that ends today with Major Lazer, the creation of DJs Diplo and Switch. The Major’s cartoon backstory is that he’s a Jamaican commando who lost an arm in a secret zombie war in 1984. He was rescued by the U.S. military, who replaced his arm with a laser, and now he flies around on a rocket-powered skateboard…