The bewitching OKO (formerly "Ladies of Tralalka") are the a cappella project of the three singers of the band Tralalka. Their stunning repertoire stretches from Georgian, Polish, Ukrainian, Russian, Bulgarian, Macedonian, Serbian, Bosnian to Turkish folk songs from the Black Sea. Their arrangements can be traditional or more experimental, carefully picked for the mood of each song. From weddings and celebrations to concert venues, the three voices fill and transform the space, creating special moments and bringing people together with smiles and tears.