Hip-hop fusion diva Santigold has the song of the summer, the infectious "Lights Out," which most people know from a beer commercial run ad nauseum. So it was no surprise to see revelers at Lollapalooza flock to her stage to dance away a scorching Chicago afternoon.

However, nobody expected the mad rush from all ends of Grant Park to see the incredible Brookynite. A headline-size audience was grooving from the start of her set, which featured "L.E.S. Artistes."