Signe Heiberg was born in Copenhagen and has been singing since childhood. After studying in Denmark and Germany, she took up her first engagement at the Lüneburg Theatre in 2016.


Signe Heiberg has been an ensemble member at the Stadttheater Bremerhaven since the 2021/2022 season. Here she debuted as Lady Macbeth in Philipp Westerbarkei's staging of Verdi's Macbeth, that is nominated to Der Faust, Deutscher Theaterpreis 2023 for best opera production. She's celebrated great successes in the title role of Oceane by Detlev Glanert, and in her debut as Tosca directed by renowned singer and director Angela Denoke.


In the 2023/2024 season she will make her debut as Rusalka and will also be heard again as the Field Marschallin in Der Rosenkavalier.


In 2019 she made her role and house debut as Amelia in Verdi's Un Ballo in Maschera at the Neue Eutiner Festspiele. She made her Austrian debut as Rosalinde in Die Fledermaus at the 30th anniversary of the Herbsttage Blindenmarkt.


From the 16/17 to 18/19 season, the young singer was part of the soloist ensemble at Theater Lüneburg and made her debut here with great success as Desdemona in Verdi's Otello. In her three seasons as a permanent member of the ensemble, she was able to develop vocally and as a performer in roles such as the Countess in The Marriage of Figaro and the Field Marshal in Der Rosenkavalier.


In 2015 Signe Heiberg also gained experience in the international opera world: at the Swiss Schlossoper Haldenstein she sang Rosalinde in Johann Strauss' Die Fledermaus in a production by Barbara-David Brüesch under the musical direction of Sebastian Tewinkel.


During her studies, Signe Heiberg had the opportunity to sing roles such as Susanna in Paul Hindemith's Sancta Susanna and Hanna Glawari in Franz Lehár's Die lustige Witwe in various university productions on the stages of the Hanseatic City of Hamburg.


After successfully completing her Bachelor's degree in Vocal Performance at the Royal Danish Academy of Music in her home town of Copenhagen, she moved to Hamburg in 2013. There she began her Master's degree in Opera Performance at the Hochschule für Musik und Theater Hamburg under the tutelage of Prof. Carolyn Grace James. She completed her studies in 2016 (also with Prof. James) with a concert exam.


Signe Heiberg's vocal training began at an early age in various choirs in Copenhagen. At the age of 16 she began her vocal studies with Prof. Helene Gjerris. Just three years later, the talented singer was accepted into the prestigious MGK, a programme for young musical talents. Here she was taught and mentored by opera singer Marianne Rørholm.


Various master classes with KS Brigitte Fassbänder, KS Edda Moser, Senior Vocal Coach Benton Hess, Susanna Eken, Professor Susan McCulloch and Margaret Humphrey Clark, among others, complemented her studies and furthered her vocal development.


Since 2017 Signe Heiberg has been working closely with the renowned mezzo-soprano Michaela Schuster. 


Signe Heiberg took part in the prestigious "Neue Stimmen" competition for young opera singers and reached the semi-finals in 2015.


She won second prize at the Mozart Competition Hamburg and special prizes from the Palace of Arts, Budapest and the Szeged Open Air Festival at the 2014 Éva Marton Singing Competition in Hungary.


In 2013 she won the special prize of the Franz Wirth Memorial Foundation, Hamburg, and the audience prize at the Maritim Music Prize in Timmendorfer Strand.