Happy Birthday James Hetfield! August 4, 2014August 4, 2014Leave a comment The guy is so cool, even Dave Mustaine wishes him a happy birthday. Happy birthday to my first real guitar partner. We changed the world brother! #JamesHetfield pic.twitter.com/yliVtFh08o — Dave Mustaine (@DaveMustaine) August 3, 2014 They definitely changed mine.