Brazilian tenor Marcos Aguiar performance appearances include his 2003 debut as Don José in Bizet’s Carmen at the 6th Aldo Baldin Singing Festival in Florianópolis, Brazil, Don José in 2004 at the Teatro da Paz Opera Festival in Belém, Brazil, Macduff in Verdi’s Macbeth in 2005 at the Rio de Janeiro Municipal Theater, and Don Jose in Carmen and Pinkerton in Madama Butterfly at the 2006 and 2007 Indiana University Opera Theater seasons. 

During 2008 and 2009 Marcos sang Verdi's Otello with the DuPage Opera Theater in Chicago and also with the Vero Beach Opera in Florida, Dick Johnson in Puccini’s La Fanciulla del West with the Di Capo Opera Theater in New York City, Canio in I Pagliacci with the Augusta Opera in Augusta, Georgia, Des Grieux in Puccini’s Manon Lescaut with the Utah Festival Opera in Logan, Utah, and Turiddu in Mascagni’s Cavalleria Rusticana with the Mississippi Opera in Jackson, Mississippi.     

Marcos graduated with a Bachelors degree in Music and Voice from Santa Marcelina College in São Paulo, Brazil, and has a Masters Degree in Music from Loyola University in New Orleans.