French singer Jean-Baptiste Guegan, known as the vocal double of Johnny Hallyday, takes part in a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

French singer Jean-Baptiste Guegan, known as the vocal double of Johnny Hallyday, takes part in a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

Artists and organizers stand on stage holding a white rose during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

French pop and jazz singer Julie Pietri performs during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

Former bassist and singer of the French group Gold, Alain Llorca performs during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

Former bassist and singer of the French group Gold, Alain Llorca performs during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

French pop and jazz singer Julie Pietri performs during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)

Swiss singer Gjon's Tears performs during a tribute concert entitled "Au cur de Crans" for the victims of the New Year's Eve bar fire in Crans-Montana, at the Salle Métropole in Lausanne on April 22, 2026. The fire that broke out in the bar "Le Constellation" during New Year celebrations, claimed 41 lives, most of them teenagers, and injured 115 others. (Photo by Fabrice COFFRINI / AFP via Getty Images)