Bojan and Dada Hadzihalilovic (together with a third artist, Lela Mulabegovic Hatt) make up the design group “TRIO Sarajevo.” Formed in 1985, originally as a three-person design team composed of graduates from the Sarajevo Academy of fine arts, TRIO were part of the particular Sarajevo generation which was raised on the punk culture and pop-art movements.

By the late-1980s TRIO had become one of the busiest and easily the most innovative design company in former Yugoslavia. Their first widely-acclaimed work was a redesign of the famous Beatles album cover Sergeant Pepper for the pop-rock group Plavi Orkestar (Blue Orchestra), which sold almost half a million copies. From there TRIO went on to create designs for a number of other bands, theatre companies and art and culture-based magazines.