It was freezing March 25, with wind cutting through every nook at the Cosmo’s Boulevard Pool, and all of our crannies. And here comes producer Gregg Gillis, marching out onstage in a blue hoodie, headband and giant, metaphorical eff-you to both Mother Nature and record-industry sampling laws. That night’s Girl Talk show had more energy than the Springfield Nuclear Power Plant, with Gillis cutting through his normal ADD mash-ups with fresh new mixes that kept everyone in the crowd from fleeing to a warm, safe haven. His spastic onstage flailing was met by toilet paper-cannon theatrics and relentless, punishing beats for nearly two hours. You didn’t notice until the end that you were shivering even harder, soaked in a cold sweat.