1. Outside Lands 2012: Metallica, Skrillex Rock San Francisco

    August 13, 2012 11:45 AM EDT It's official: there's no such thing as genre-division anymore. The proof? The Outside Lands music festival in San Francisco's Golden Gate Park this weekend, which found boomer headliners sharing time with EDM youngsters, metal oligarchs, and AOR mainstays -- and an audience…