Watch U.D.O.: Wacken 2012 Online Avalaible Now [ FREE ] Select your Language : U.D.O. live at Wacken with special guests. U.D.O. is a German power metal band founded by lead singer Udo Dirkschneider in 1987. Wacken Open Air (W:O:A) is a summer open air heavy metal music festival. It takes place annually in the small v... Watch movie online - EN Watch Movie trailer Download Links - EN Language SD Quality - EN HQ Quality - EN HD Quality - EN HD Quality - EN 4K Quality - EN 8K Quality - EN