Prague jazz avantgarde band led by Filip Topol, a controversial pianist, singer and composer, who has also built his own solo career alongside the band. They had their first concert in 1979 when most members were only 13. The gig was such a success that they were immediately banned by the regime and withdrew to private underground performances ever since. After the 1989 revolution their popularity and cult grew fast and they toured around many European countries and festivals.