I heard a punk band, can't remember the name right now, but just about all they do are cover songs - old stuff by Barry Manilow, Paul Simon, Billy Joel, etc. They take some of the slow ballads and speed them up to insane speeds, lots of ultra guitar distortion - I'm sure you can imagine. The thing is, they don't actually change any notes or phrasing, just the tempo and volume, and thus it's perfectly legal - they don't even have to ask permission. Anyone else heard of this (or know what band I refer to)?