GRAND RAPIDS (WKZO) -- ArtPrize 2013 will serve as the backdrop for a national conference in Grand Rapids next year.  CEOs for Cities has chosen the Furniture City to host its event, and plans to bring in as many as 400 business and government leaders from 50 cities.  ArtPrize spokesman Brian Burch says it's a "very good trend to see the city of Grand Rapids" gaining prominence due to the art contest.