The German-French mezzo-soprano Estelle Haussner was born in Stuttgart and grew up in Montpellier (France). There she studied German and English before taking up singing studies at the Hochschule für Musik und Tanz with Prof. Robert Schunk. During her studies she made her debut at the Theater Aachen in 2011 as mother and dragonfly in Maurice Ravel's "l'enfant et les sortilèges". In 2013 she sang the third lady in The Magic Flute for the Cologne Chamber Opera. In the same year she embodied Orlowsky in Die Fledermaus and took part in numerous concert and song recitals for the Compagnie Opera et cetera under the direction of Keith Ikaia Purdy. During her studies she taught pop and classical singing at the Richert music school. In 2014, Estelle Haussner was engaged in the chorus of the Leipzig Opera in Alto 2, where she also appeared as a soloist as Nurse "Alisa" in Lucia di Lammermoor (Donizetti), "Flower Girl" in Parsifal (Wagner) and as a bridesmaid in the Freischütz (Weber) with the Gewandhaus Orchestra under the direction of Ulf Schirmer, Christoph Gedschold and Anthony Bramall. In Leipzig she continued to give private classical singing lessons to students of all ages, as well as voice training for amateur choirs and vocal coaching for executives. She also became a permanent alto soloist at the church in Markranstädt, where she regularly sang Mozart's Requiem, Bach's Christmas Oratorio and Dvorak's Stabat Mater. In 2022 her career expanded internationally when she was again appointed as 3rd lady in the magic flute at the french opera festival Eva Ganizate. Estelle Haussner currently lives in Mönchengladbach with her two children and her husband, who is Kapellmeister at the Theater Krefeld/Mönchengladbach.