Most bands want their vocals to sound crisp and clear for maximum singalong purposes. How the hell are you going to lead a stadium of people to sing your lyrics at you if they don't know what you're saying?

But there are exceptions, and it probably shouldn't come as a surprise that for whatever reasons bands have recorded songs, intentionally or not, that continue to befuddle karaoke singers around the world. Some have even sparked controversy, because if you can't understand what they're saying, they could be saying anything! Even something dirty! Here's five of the most ridiculously hard-to-understand songs.