Watch FMovies. Festival of the Midnight Sun, a.k.a. the Mantorp Festival became the biggest fiasco in Swedish pop festival history. The festival was presented the midsummer weekend 19-21 June 1970 at Mantorp Raceway. A local band, Magazine Story, from Linköping, had the honor of opening the festival with Clabbe af Geijerstam as MC. The raceway and surroundings were almost empty. Clabbe's welcome speech explained that the sun was the guest of honor at the festival, which was dedicated to "peace, friendship, love, community and everything that can be thought of as beautiful".