This Tuesday, April 8, like a simple street artist, alone with his voice and his guitar, Vianney gave an improvised live performance in front of Notre-Dame Cathedral in Paris. With the ultra-fast messages on social networks, the concert transformed into an uncontrollable crowd bath. After a few minutes of concert in a relaxed atmosphere, the singer nevertheless had to interrupt his performance and pack up for safety reasons. He explained that he had organized this concert for the imminent release of the single “Hallelujah” that he had sung in the cathedral.