Australian cabaret star Hans the German — aka Matt Gilbertson — to perform in opera production Candide

In short: Adelaide entertainer Matt Gilbertson has taken his first opera role in Leonard Bernstein's Candide. Adelaide entertainer Matt Gilbertson has taken his first opera role in Leonard Bernstein's Candide. "I was very nervous the first few rehearsals, I'm not going to lie, but it's actually a very warm cast," Gilbertson says in a break from another long day of rehearsals. Matt Gilbertson's alter ego Hans the German has toured the world with his cabaret show.