Sup Pop is well-known for unabashed self-promotion and grandiose overstatement. Thing is, most of that (tongue-in-cheek) hyperbole is deserved. The much-touted reunion of Green River, one of the label's first signees, was no different. It truly was the highlight of Sub Pop's two-day 20th birthday bash. From the moment Green River—drummer Alex Shumway, guitarists Steve Turner, Stone Gossard, and Bruce Fairweather, bassist Jeff Ament, and frontman Mark Arm—took the stage, the crowd (packed tight and......