Curtain call for the 2026 edition of Rock en Seine! This Sunday, August 30, 2026, festival-goers once again buzzed on the grounds of the Domaine national de Saint-Cloud. A look back at this fifth and final day, highlighted by The Cure’s masterful concert, the ethereal post-rock of the Scottish outfit Mogwai, and the utterly powerful and mesmerizing performance by Swedish artist Anna von Hausswolff. We were there—here’s the story.