Green Man Festival is back for 2013 with arguably its most impressive line up ever, including headliners Kings of Convenience, Band of Horses, and one of our favourite nation radio artists, Ben Howard, all taking to the stage on the weekend of the 16th, 17th and 18th August Taking place in the picturesque Black Mountains, the festival is pretty much unversally regarded as one of the best medium sized festivals going, and we're giving you the chance to be there..