The Blue Balls Festival is one of the largest music and art festivals in Switzerland, which includes 120 events spread over nine days that attract 100,000 visitors! Pop, blues, rock, soul, funk and world music concerts meet photography, art, video, film and discussions – all in and around the KKL congress centre. An open-air stage is available as well as late-night sessions at the Schweizerhof Hotel (no tickets necessary, but a Festival pin is required: 20Sfr). This year's programme features Keziah Jones, Charlotte Gainsbourg, Glen Hansard, Katie Melua and Ben Harper, to name just a few.