Another year, another party in a parking lot. The 18th annual Hideout Block Party (which merged with the Onion's A.V. Fest a few years ago) has grown a bit larger with each successive occurrence, but the gathering has maintained a relaxed atmosphere befitting of an event that marks the tail end of the summer festival season. Headliners Death Cab for Cutie and the War on Drugs drew sizable crowds, but we were equally impressed by the minimalistic dance-pop of Sylvan Esso, Walkmen frontman Hamilton Leithauser's lush solo set and the madcap musical antics of Mac DeMarco. We stopped by the tucked away festival on Saturday afternoon to partake in some end-of-the-summer tunes.