Jeff Koons, 2 Ball 50/50, 1985.  Koons was part of a group exhibition at The Renaissance Society in 1986 titled New Sculpture.  Koons has two exhibitions that will be run between June 20 and September 23, 2012 at Schirn Kunsthalle Frankfurt and Liebieghaus Skulpturensammlung.  The two concurrent shows will deliberately separate the sculptural and painterly aspects of his oeuvre and present each in a context of its own.