Article Photos: Lollapalooza 2013 completely sold out 1/1

FILE - In this July 14, 2012 file photo, Robert Smith, frontman of English rock band The Cure, performs during their concert at the Optimus Alive music festival in Lisbon, Portugal. The Cure will headline the Lollapalooza music festival in Chicago's Grant Park in August 2013 for the first time in the festival's more than 20-year history. (AP Photo/Armando Franca, File)  EDITORIAL USE ONLY