Steven Wagner - Stevan Vagner, Podrum COLLEGIUM MELODIUM, World music museum in Belgrade, Skale, Ljubisa, Ika and POP / FAR /, present YU Grupa (trans. YU Group) a Serbian and former Yugoslav rock band. One of the pioneers combining rock music with the elements of the traditional music of the Balkans YU Grupa is considered the longest-lasting rock band to come from Serbia'