Rise Against’s fiery Saturday afternoon set at Lollapalooza looked like it could have gone down during one of the great Lollas of the ’90s — mosh pit and all. Frontman Tim McIlrath tells Rolling Stone the show had special significance for the band, not only because it was their first hometown gig in a while (they skipped Chicago on tour with Rancid), but because Grant Park has so much historical weight: “To play the same place where Obama gave his speech, the same place where the riots of 1968 were, during the Democratic National Convention — this park has a lot of history to it.” Catch some of the band’s killer set and the rest of the interview, above.