More than 40 bands will perform at three stages in Union Park this weekend, July 18-20, playing indie rock, world music, and a variety of other styles. Three-day passes and two-day passes are sold out, but individual passes can be purchased for $30 to hear a jam-packed schedule of bands. On Saturday and Sunday, the music starts at 1:00 PM and the last act takes the stage at 9:00 PM. Among the top acts are Spoon, M. Ward, Dinosaur Jr, Ghostface and Raekwon, Les Savy Fav, and Bon Iver.

On Friday night, scheduled bands will play entire albums on the main stage. This year features Public Enemy playing “It Takes a Nation of Millions to Hold Us Back,” Sebadoh playing “Bubble and Scrape,” and Mission of Burma playing “Vs.”

To purchase tickets and find out more information on the bands, check out the website and don’t miss out what has become a staple summer music festival in Chicago.