At the recent Onion Festival the Boys in Metallica wanted to have some fun. during the festival a band called Dehaan was promoted. No one knew anything about them.. for those that showed up, it turned out to be Metallica themselves. Here's some video of the performance. The video is about 50 minutes long, so grab a soda and keep the volume down if you are at work, becasue it is loud rock and roll. Enjoy