Several acts joined the lineup for the 2013 Pitchfork Music Festival. As previously reported, Pitchfork will return to Chicago’s Union Park from July 19-21. In addition to previously confirmed Friday headliner Björk, the festival will welcome Joanna Newsom, Angel Olsen, and Trash Talk. Saturday will see performances by previously announced headliner Belle & Sebastian as well as The Breeders—who will perform their album Last Splash, Rustie, Swans, …And You Will Know Us By The Trail of Dead and Mac DeMarco. Finally, Chairlift, TNGHT, Sky Ferreira, Killer Mike, El-P, Foxygen and Tree will join R. Kelly on Sunday. Additional acts will be confirmed in the coming weeks.