High Quality Content by WIKIPEDIA articles! Ivan L. Wilzig (born January 5, 1956), also known as Sir Ivan or Peaceman, is a musician who is best known for techno remixes of 1960s songs such as "Imagine" and "San Francisco". He is also founder of the nonprofit Peaceman Foundation and appeared as Mr. Mitzvah on Season Two of the reality television show Who Wants to be a Superhero?