Riot Fest has made the final weekend additions to the 2021 event, kicking off September 19th, 2021, which will be the fest’s first-ever Thursday Preview Party. Patti Smith and Her Band and Alkaline Trio will join Thursday night, with additional sets from Joyce Manor (performing their self-titled 2011 debut), WDRL, and Kristeen Young. As for Sunday, The Flaming Lips will return to Riot Fest on Sunday, bringing the fest-favorites back to Douglass Park on September 19 to replace Pixies. Sunday attendees will also get into the Thursday Preview Party for free, with a host of freshly-announced perks included. Tickets are on sale now at the link below.