Calling all francophone music fans! L’Estival returns to the Yvelines with a brand-new, 39th edition running from September 25 to October 10, 2026 in Poissy, Achères, and Conflans-Sainte-Honorine. What’s on the lineup? Gigs by The Wampas, Selah Sue, Julien Clerc, Yannick Noah, plus Gildaa and Juste Shani.