After graduating from the Conservatoire de Bruxelles under Jules Bastin, Anne-Catherine Gillet (1975) continued her studies at the Conservatoire de Liège with Nicolas Christou. She continues her development with Madame Isabel Garcisanz.

She was a finalist of the Concours International de Chant de Verviers 1997 where she won the Belgian French-Community prize for talent. In 1998 she became laureate of the Voix Nouvelles Competition at the Opéra Comique in Paris.

Anne-Catherine Gillet was engaged by the Royal Opera of Wallonia for the seasons 97/98 to 2000/01 where she has interpreted numerous roles including the First Lady in the “Magic Flute”, Seprina (Serva Padrona), Clémence (Mireille-Gounod), Antonia (Homme de la Mancha – produced by A. Bourseiller), the Shepherd (Tannhaüsser - W. Herzog), Sophie (Werther) and Clairette (La fille de Madame Angot), Jemmy (William Tell – directed by A. Zedda)

In concert, she has been invited by the Symphonic Orchestra of la Monnaie, the National Orchestra of Belgium, the Philharmonic Orchestra of Flanders, the Lorraine Philharmonia, the Ensemble Orchestral of Paris …

Her debut at the Théatre Royal de la Monnaie was in 1999/2000 in the role of Frasquita (Carmen) under the direction of Antonio Pappano and Bertrand de Bill. At the Flemish Opera she made her first appearance on the 31st of December 1999 singing a Grand Offenbach Gala alongside Rita Gorr.

Anne-Catherine Gillet was invited by the opera companies of Nancy (Niece, Peter Grimes 2000), Montpellier (Constance, Quatorze Juillet, produced by J.Savary 2000), Amsterdam (Giannetta, L'Elisir d'Amore, - G.Ferro 2001), La Monnaie (La Princesse, L'Enfant et les sortilèges –d. M.Viotti 2001), Toulon (Sophie, Werther), and Geneva (Karolka, Jenufa & Tebaldo, Don Carlo 2002 d.E.Pido).

In 2002/03 she made her debuts in the Ring (as Woglinde in Das Rheingold) at the Royal Opera of Wallonia (as Woglinde in Die Götterdämmerung) and at the Théatre du Capitole of Toulouse, where she was also casted as Papagena (Die Zauberflöte). Her interpretation of Musetta (La Bohème) directed in La Monnaie by Antonio Pappano did not go unnoticed.

In the following seasons (2003/04/05) Anne-Catherine Gillet reappears as Musetta in la Bohème, this time at the Grand Theatre of Geneva in a production by Louis Langrée. She also reunites with Alberto Zedda for Cenerentola (Clorinda) in Liège where a new debut awaits her as Constance in Le Dialogues des Carmelites. At the Opera of Marseille she plays the title role in L’Héritière by Jean-Michel Damase, in Toulouse she sings Gabrièle of La Vie Parisienne and at la Monnaie in a concert of French opera music directed by Kazushi Ono, she performs alongside José van Dam.

In 2005/06 Anne-Catherine will sing the parts of Despina (Cosi), Zdenka (Arabella) and Lauretta (Gianni Schicchi) in the Capitole of Toulouse. She will also sing the title role of Poppea in the Coronation of Poppea in Côme and Brescia directed by Ottavio Dantone, and also at the Capitole of Toulouse under Cristophe Rousset.

In 2006/07 she shall sing her first Mélisande in Liège, directed by Patrick Davin and Philippe Sireuil. Anne-Catherine will also take on the title role in Colombe de Damasse at Marseille and perform as Marceline (Fidelio) at the Opéra d’Avignon. Another debut is planned at the Zürich Opera as Laoula (L’Etoile/Chabrier) which will be directed by John Eliot Gardiner.