On 5 May, Liberation Day, musical liberation festivals are celebrated every year throughout the whole of the Netherlands. Hundreds of thousands of visitors come to these gatherings that are organised as a reminder of the liberation of the Netherlands in 1945. Together these festivals form one of the greatest music events of the Netherlands. Admission to the festivals is free, and the festivities are organised by the National Committee for 4 and 5 May.
In 2016 InterStage installed objects in Zwolle, Almere and Groningen.