You've got to respect new Capitol Hill Block Party owner Jason Lajeunesse's commitment to making this year's event a success. When Grimes's bass proved too powerful for the mainstage—causing all of her monitors, keyboards, and stands to bounce out of control—he sprinted out onto the stage with a roll of trusty duct tape to reassert control over her seismic beats so that the show could go on inducing all sorts of crowd surfing without interruption.