CHICAGO, IL - AUGUST 08: A general view of Grant Park during the 2009 Lollapalooza music festival at Grant Park on August 8, 2009 in Chicago, Illinois. (Photo by Roger Kisby/Getty Images)

Dave Gahan of Depeche Mode performs during the Lollapalooza concert at Grant Park in Chicago, Illinois, on Friday, August 7, 2009. (Mike Rich/Chicago Tribune/MCT) Photo via Newscom

Butler Field at Grant Park, CHICAGO, IL - JULY 25: In this handout image provided by Red Bull Photofiles, Levi LaVallee pro snowmobile rider is seen during the the Red Bull High Rise on July 25, 2009 at Grant Park in ...

Fea0008406.Grant Park, Chicago, as Barack Obama is elected next president of the USA..Pic shows scenes from within the park as the news is broke of Obamas victory