In which European country does the annual music festival called Pukkelpop usually take place?

Pukkelpop is an annual music festival that takes place near the city of Hasselt, Belgium, in mid- to late August. It is held within a large enclosure of fields and woodland (between a dual carriageway called Kempische Steenweg) in the village of Kiewit, approximately 7 km north of Hasselt. It is one of the largest music festivals in Belgium, with an attendance of 180,000 over the course of the event in 2009.

The program is noted for its wide variety of alternative music, spanning styles such as rock, pop, electronic, dance, hip-hop, punk and heavy metal. The event's organizers aim for a "progressive and contemporary" musical event.

The festival was founded in 1985 by youth organisation Humanistic Youth of Leopoldsburg. It originated as a single day event, held on July 21 (a national holiday in Belgium) in the village of Leopoldsburg, located approximately 25 km north of the event's current home in Kiewit. The inaugural event in 1985 took place at the village football grounds of Complex Excelsior Heppen and featured seven acts, with English songwriter Anne Clark headlining. The first year was attended by 3,000 people.