Yannick Le Gall, a journalist from France 3, the regional television state channel, who was positioned opposite the steps, said: “We were in front of Lady Gaga’s set, and by the time the music started, the staircase was empty.”

When the singer instead appeared on a giant screen in front of the stands, “spectators booed and regretted having paid €180 to see nothing,” Mr Gall added.