Lollapalooza bringing dance focus to Chicago Share this story email Share this story «Previous 8 of 8 Photos Next » Read the story «Previous Next » « » Lollapalooza 2012 Chicago Mayor Rahm Emanuel takes the stage to introduce the Black Keys (unseen) on Friday, Aug. 3, 2012. (Photo by Sitthixay Ditthavong/Invision/AP)
