DANCE PARTY PRELUDEOur favorite musical workaholic QuestLove can't even take a night off before America's birthday party. Instead, he's hosting "Philadelphia Sound Konnoisseurs," an all-night-before-July-Fourth dance party jam featuring some of Philly's finest spinnas: our major export Diplo, DJ Spinna, DJ Jazzy Jeff, DJ ?uesto (QuestLove's alt identity), plus ringer J Rocc of the West Coast Stones Throw All Stars.