Sasha Kathrine Siem (born 1984 in London) is a British-Norwegian singer-songwriter and composer.
Sasha Siem was born in London, England, to , a Norwegian businessman, and his South African wife Karen Ann, née Moross. Her brother is violinist Charlie Siem.
Sasha studied music and poetry at Cambridge University and Harvard University By her early twenties she had written music for the London Symphony Orchestra,The Royal Opera House, Rambert Dance Company,Opera North, The Aldeburgh Festival,Le Nouvel Ensemble Moderne, The London Sinfonietta, and the London Philharmonic Orchestra . In 2010, she became one of the youngest people to win a British Composer Award . She has also been awarded the Arthur Bliss Prize and the Royal Philharmonic Society Composition Prize.
Sasha has performed at festivals and venues across Europe and the US, including The Royal Opera House, London; HBC, Berlin; the Ultima Oslo Contemporary Music Festival, (Le) Poisson Rouge, NYC, by:Larm,Joe's Pub and The Forum, London.
While parallels have been drawn with pioneering singer-songwriters such as Tom Waits, Jacques Brel, Björk, and Joanna Newsom the influence of art-song composers such as György Kurtág, Claude Vivier, Salvatore Sciarrino is equally evident in her music.