Incoming Onstage crowds are perplexed to find what looks like a wayward, trucker-capped, Kings Of Leon roadie, brandishing a ghetto-blaster pumping idiosyncratic, Beck-like sounds. In fact, this lone ranger is making a bigger racket with his beatbox than most bigger bands have done all weekend. Once the rest of his band take to the stage, Simple Kid and his cohorts are more uplifting than a truckload of Alka Seltzer. Between their snappy dressing and their sonic musical mayhem, this is an uncut diamond of a band, and in a festival atmosphere, that's the best type of band there is.