Lollapalooza 2013

Crowds gather to listen to the group Tegan and Sara at Lollapalooza 2013 at Grant Park in Chicago, Illinois, on Sunday, August 4. It's the ninth year of the three-day music festival, which features a range of up-and-coming and established artists, including The Killers and Icona Pop. The festival runs through August 4.

Crowds gather to listen to the group Tegan and Sara at Lollapalooza 2013 at Grant Park in Chicago, Illinois, on Sunday, August 4. It's the ninth year of the three-day music festival, which features a range of up-and-coming and established artists, including The Killers and Icona Pop. The festival runs through August 4.