Celebrating twenty years of the Festival and Claude Nobs’s fiftieth birthday called for a very special poster indeed. Pierre Keller came up with the goods by bringing together Keith Haring and Andy Warhol for the first collaboration between the two New York icons. But the day before Keller was due to return from New York with the finished poster, nothing was ready. Haring thus suggested that Warhol draw a series of staves, and positioned dancing figures between them that resemble musical notes. The two artists decided to paint the poster in red and yellow. “It’s very Swiss, and will remind people of Maggi seasoning,” Keller commented. The Festival’s artistic advisor was able to take the poster away with him, with the typography and signatures of the two artists following on by UPS delivery a few days later.