Eva-Maria Westbroek Marcelo Álvarez George Gagnidze Jane Bunnell Ginger Costa-Jackson Patricia Racette Lucas Meachem Andrew Stenson
Joyce DiDonato Juan Diego Flórez Daniela Barcellona Eduardo Valdes Oren Gradus John Osborn Olga Makarina Gregory Schmidt
Anna Netrebko Dolora Zajick Dmitri Hvorostovsky Yonghoon Lee Štefan Kocán Maria Zifchak Edward Albert David Lowe Raúl Melo