Saturday was full of tougher decisions than day one, not the least of which was Interpol vs. Muse vs. staying dry. Grant Park got its drizzle on during The Hold Steady; by the time Spoon took the MySpace stage, it was full-on downpour. Britt reminded us how to pronounce GaGaGaGaGa (like a machine gun!) and the genius of LCD's Friday ...