Jeff Koons

His 1991 performance art series "Made in Heaven" featured sexually explicit photographs and sculptures of himself and ex-wife Ilona Staller. Their son, Ludwig Maximilian (born 29 October 1992), has been the object of a bitter international custody battle.

As a young artist I wanted to be engaged in the excitement of making art and sharing ideas. And that hasn't changed - that's what the art world represents to me.