Every time the Dutch national football team takes part in the European or World Championships, singers throughout the country try to come up with a song that everyone can sing along to.
There's no secret formula for coming up with a hit, say experts. It has to be popular and simple and easy to remember. But most importantly, it has to spark Orange Fever among fans throughout the country.
The first Orange song dates back to 1934. It was called "We're going to Rome". Ever since then, songwriters have been trying to come up with the next Orange blockbuster.