Dutch child-star Heintje on a poster in a Bravo of August 1968.Heintje was massive; whole generations of Germans grew up with his Christmas albums. Heintje is Christmas.
The poster runs a double pun: “Drei Käse hoch”, meaning “Three-cheeses-high” is a German term for a kid who’s still small. Cheese is, of course, a product for which the Dutch are famous. Basil Fawlty was wrong: the Germans do have a sense of humour.
Here’s Heintje’s ubiquitous Christmas album (listen to it here, if you need to):