If you've been walking around NYC you've probably seen some of the new ads by Diesel telling you to BE STUPID. If you've been telling your friends how cool it is, but secretly scratching your head, the video above explains it all. Apparently, the world would be boring or less creative without some stupidity. True on the first, on the fence about the last. Anyhow, watch the video and decide for yourself if you want to BE STUPID. And while you're watching, if you can identify the song playing, let us know.