NewsKorn And Avenged Sevenfold To Co-headline 2014 Mayhem Festival on February 1, 2014 Korn guitarist James “Munky” Shaffer may have just leaked the 2014 Mayhem Festival co-headliners. During a recent NAMM booth signing, The New American Media caught Shaffer saying,Share this:TweetRedditMoreShare on TumblrRelated