Charles Kellis is a voice teacher in Manhattan. He was formerly on the voice faculty of the University of Iowa, Southern Illinois University, and, for 16 years, the Juilliard School. He has served as an adjudicator for the Met Regional Auditions and as a teacher for the Metropolitan Young Artist Program. His students have sung in most of the major opera houses of the world, including the Met, La Scala, and Berlin, and have been winners in the most prestigious vocal competitions in Europe and the United States, including the Cardiff Singer of the World, Tchaikovsky in Moscow, and the Moniuszko International in Poland. Find out more at www.charleskellis.com.