The Iris Festival is the annual and official celebration of the Brussels-Capital Region in Belgium. It takes place on 8 May[1][2] and is a day off for Brussels officials.[3]
During the multi-day party, free concerts, street entertainment and all kinds of activities are organised for the general public. Some monuments are exceptionally accessible to the public, and a food truck festival takes place on this day. In 2008, there were 100,000 participants at the festivities.[2] Since 2015, Rock Around The Atomium has also been organised at the Atomium in this weekend.