Minouche Barelli participated in what contest in Vienna, Austria?
Minouche Barelli: Minouche Barelli (13 December 1947 – 20 February 2004), born Mary-Pierre Barelli, was a French singer, best-known internationally for her participation in the 1967 Eurovision Song Contest. Eurovision Song Contest 1967:  It took place on 8 April 1967 in Vienna, Austria following Udo Jürgens win at the 1966 contest.
i don't know