He was editor in chief for the german version of the Mad Magazine until 1992.
Author of books: Feuersteins Reisen (paperback ISBN: 978-3-453-40149-5), also Feuersteins Ersatzbuch, Feuersteins Drittes (2004), Frauen fragen Feuerstein und sieben andere F-Wörter (2005), published by Heyne Verlag.
Often appears as a host for various classic shows in concert halls.
Played the part of "Frosch" in Johann Strauss' operetta "Die Fledermaus" at the Oper Leipzig.