Lollapalooza kicks off in Chicago with stepped-up security
There will be more security at this year's Lollapalooza music festival in Chicago, where Bruno Mars, Jack White and the Arctic Monkeys are among the headliners for the four-day event.
There will be more security at this year's Lollapalooza music festival in Chicago, where Bruno Mars, Jack White and the Arctic Monkeys are among the headliners for the four-day event.