Mademoiselle Karen is an explosion of languages and music in a delicate and surprising form. As a musical reflection on the global perspective, Mademoiselle Karen combines languages and music with lyrics full of humor, depth and heart. In front and behind Mademoiselle Karen is the Danish multi-instrumentalist and vocalist Karen Duelund Guastavino as the songwriter, general composer and leader of the project.

Mademoiselle Karen became an acknowledged band especially in Poland with the debutalbum "Attention" (released 2010 on Mystic Production/vme DK). The album got very positive reviews and a big interest from radio and media. Mademoiselle Karen has toured all over Poland, Germany and Denmark. The 2nd album ‘Comme Les Garcons’ released in 2014 gave a new edge to Mademoiselle Karen. The album is recorded and produced together with Danish drummer and producer Troels Drasbeck.

On April 17th 2020 Mademoiselle Karen released the single 'Je Suis Rentrée à la Maison'. The song brings a new softness and current seriousity into the universe of Mademoiselle Karen.

On stage Mademoiselle Karen is full of energy, enthusiasm and commitment. Concerts with Mademoiselle Karen are intense and unforgettable experiences.