French-Brazilian singer Luiza performs on stage on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as France endures a heatwave. (Photo by Philippe LOPEZ / AFP via Getty Images)

A man cools off under a water mist diffuser as festivalgoers arrive on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as a heatwave hits France. (Photo by Philippe LOPEZ / AFP via Getty Images)

Spectators attend the Francofolies music festival during its 42nd edition, in La Rochelle, western France on July 10, 2025. (Photo by Philippe LOPEZ / AFP via Getty Images)

A woman cools off under a water mist diffuser as festivalgoers arrive on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as a heatwave hits France. (Photo by Philippe LOPEZ / AFP via Getty Images)

Spectators attend the Francofolies music festival during its 42nd edition, in La Rochelle, western France on July 10, 2025. (Photo by Philippe LOPEZ / AFP via Getty Images)

French-Brazilian singer Luiza performs on stage on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as France endures a heatwave. (Photo by Philippe LOPEZ / AFP via Getty Images)

French-Brazilian singer Luiza performs on stage on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as France endures a heatwave. (Photo by Philippe LOPEZ / AFP via Getty Images)

French-Brazilian singer Luiza performs on stage on the opening day of the 42nd Francofolies music festival in La Rochelle, western France, on July 10, 2026, as France endures a heatwave. (Photo by Philippe LOPEZ / AFP via Getty Images)