Launched in 2002 by KUD France Prešeren Arts and Culture Association and the Improvisation Society of Slovenia, the Naked Stage International Improvised Theatre Festival presents a range of new work by international improvisation theatre groups. While the first festival of 2002 invited individual performers from different improvisational theatre groups to stage international improvisational shows in mixed groups, the second festival of 2003 was a thematic one, based on the concept of character in improvisational theatre. Performances and workshops were given by Unexpected Productions, (Seattle), Theater im Bahnhof (Graz), Improvvisazione teatrale italiana (Bologna) and Isar148 (Munich), and improvisers from all around the globe explored the process of creating and developing characters for the final show of the festival.

Naked Stage International Improvised Theatre Festival is supported by Ljubljana Urban Municipality as well as by several foreign embassies and cultural centres in Slovenia.