It seems like Pitchfork Music Festival grows in unexpected ways each and every year. But up until now, they haven’t thrown a curveball at us like this year’s headliners. For those of you heading up to Chicago this year, expect to see R. Kelly, Björk and Belle and Sebastian headline the festival. I’m not sure we have ever witnessed such an eclectic mix, but it should certainly be a treat for those that are a fan of any of the three. Pitchfork Music Festival goes down July 19-21 in Chicago’s Union Park. Tickets are on sale now.