457 guitarists came together in Sydney, Australia to attempt to set the world record for largest electric guitar ensemble. They rocked out to AC/DC's "Highway To Hell" and sounded pretty good doing it. The standing record was 368 Indian guitarists who played Bob Dylan's "Knockin' On Heavens Door." No word from Guinness World Records on if the Australians will be recognized. It looks like it was a lot of fun to be a part of, record or not.