Listen and watch at Laboratorija Zvuka music videos. Laboratorija Zvuka was a Serbian and former Yugoslav rock band. Noted for their eccentric style, erotic lyrics, unusual line ups and bizarre circus-inspired stage performances, Laboratorija Zvuka were one of the pioneers of the Serbian and former Yugoslav alternative rock scenes. The band was founded in 1977 by the brothers Predrag and Mladen Vranešević.