Marianne Beate Kielland was born in 1975 in Norway. She graduated from The Norwegian Academy of Music in 2000, studying with Svein Bjørkøy and Ingrid Bjoner. She has also studied with Oren Brown and Barbara Bonney, and she took part in master classes with Dietrich Fischer-Dieskau.

Marianne Beate Kielland is established as one of the foremost singers of Scandinavia, and she is one of few Scandinavian singers who has received a Grammy nominated for their vocal performances.

She has built an unusually vast concert repertoire that spans music from the early 17th Century works of Monteverdi, via Bach, Händel, Vivaldi, Gluck, Haydn, Mozart, Beethoven, Mendelssohn, Brahms, Berlioz, Wagner, Dvorak, Elgar, Mahler, Schönberg, Berg, Weill, Berio, up to contemporary works of Cage, Stockhausen, Berio, Ratkje and Plagge, and her stunning ability to switch styles and perform the music correct according to its time, is highly appreciated by both conducters, performers and audience.

After finishing her studies she was engaged at the State Opera in Hanover, Germany. She regularly works with leading orchestras and choirs if Europe, and appeared with orchestras such as: Mahler Chamber Orchestra, Anima Eterna, Oslo Philharmonic Orchestra, Les Talens Lyriques, Wiener Sinfoniker, NDR Sinfonieorchester Hanover, SWR Sinfonieorchester Stuttgart, Budapest Festival Orchestra, Gothenburg Symphony Orchestra, Swedish Chamber Orchestra, Royal Flemish Orchestra, Akademie für alte Musik Berlin, Concerto Köln, Europa Galante, Concert des Nations, RIAS chamber choir, Orchestre Champs-Elysees, Collegium Vocale Gent, Bach Collegium Japan and Iceland Symphony Orchestra.

She has performed with conductors such as Christophe Rousset, Mark Minkowski, Jukka-Pekka Saraste, Rene Jacobs, George Petrou, Vasily Petrenko, Giordani Bellincampi, Nicholas Kraemer, Nicholas McGegan, Sebastien Rouland, Jos van Immerseel, Giancarlo Andretta, Andrew Manze, Eivind Gullberg Jensen, Fabio Biondi, Rinaldo Alessandrini, Phillippe Herreweghe, Masaaki Suzuki, Helmuth Rilling, Robert King, Fabio Bonnizioni, Jordi Savall, Thomas Dausgaard, Ari Rasilainen, Joshua Rifkin, Lars Ulrik Mortensen, Manfred Honeck, Iona Brown, Andreas Spering, Daniel Reuss, Hans Christoph Rademann, Thomas Søndergaard, Bjarte Engeset and Christian Eggen.

Kielland performes regularly with pianist Nils Anders Mortensen. They appeared several times at festivals throughout Norway, and in Norwegian concert halls, in addition in touring Germany Estonia, Russia and Finland. Their first recording: Thommessen – Veslemøy Synsk was released in 2011, and this CD was Grammy nominated in 2012 in the category “Best classical vocal solo”. Later they recorded several recitals, and more is to come..

Kielland also performed lieder with pianists such as: Leif Ove Andsnes, Jos van Immerseel, Pascal Roge, Jean-Efflam Bavouzet, Georgy Tchaidze, Christian Ihle Hadland and Håvard Gimse.

Her more than 40 recordings for among others LAWO Classics, Lindberg Lyd, Harmonia Mundi, ZigZag, Avie records, Capriccio, Naxos, 2L and Kirkelig Kulturverksted include several lied recordings,  Bach recordings with Helmut Müller-Brühl and Joshua Rifkin, Händel and Telemann solo cantatas with Bergen Barokk, Martin with Daniel Reuss, Beethoven, Schubert and Haydn with Jos van Immerseel and Haydn with Michael Willens.

She is often broadcasted in radio and TV in Norway and abroad.