Belgium had a turbulent electronic music scene during the 1990s, with a free, extravagant club scene and rocksolid music production. Unfortunately, this changed with repressive government actions against allegedly high drug consumption in nightclubs, Belgium's emerging electronic music festivals as competitors and increasingly difficult, obtainable party licences. Clubs are disappearing as fast as they were established, but something new is bubbling underground. As was the case earlier in Britain, France and the Netherlands, Belgian collectives are holding parties in forests, squats, fields, industrial estates and abandoned office buildings. These illegal raves or free parties are organised by soundsystem crews consisting of DJs, sound engineers, artists and music lovers. On the basis of interviews with five organisers and two partygoers, this study attempts to gain an insight into how these parties come about and what significance they acquire in the development of participants' individual and collective identities.