Lollapalooza souvenirs | Lollapalooza, the big summer music event that takes over Chicago this weekend, got hit by a big storm just like last year – or maybe it was the year before. So often when it rains the fields turn black with mud and everyone takes it home with them. These guys from Mexico City were far from worst soiled, but they were the only ones with Mexican flags in their pockets. They were thoughtful enough not to sit down and ruin the train seats. My guess is most of that stuff doesn’t ever come clean.