The German goth-pop band Tokio Hotel is like some sort of nightmarish blend of Evanescence, t.A.T.u., and the Jonas Brothers, with just a hint of Adam Duritz’s dreadlocked aesthetic thrown in for good measure. It’s the kind of band that would never exist without the Internet, and I’d have remained blissfully unaware of its existence if not for a fateful run-in with its fanbase on Tuesday morning here in Madrid, which, thanks to my uncle, was captured on video as a record of what might be the most unwarranted mania in the history of pop music. And that’s including LFO and Limp Bizkit.