Jeff Koons is widely regarded as one of the most controversial artists of the postwar era. (artlyst.com)
Maurizio Cattelan is one of the most controversial artists of our time. (vernissage.tv)
Consider Oscar Murillo, a talented and controversial artist who opened three exhibitions in Berlin that week, all aptly yoked together by the title «Enjoy the food, but you're not welcomed at the table.» (artforum.com)