sentences:  This time his main collaborator was Dragoljub Marković alias Dr. Dra (ex-member of rock-bands such as Ništa ali logopedi, Block Out, X-Centar), who added some vocal parts, played various instruments and produced the album.Marčelo also did some co-producing and arrangement work.The resulting sound was a hip hop with strong rock, jazz and funk influences, which estranged a minority of fans who loved what they considered to be the pure hip hop sound of "De Facto", but it gained the admiration of many people unfamiliar with rap and hip hop.