Sigur Huldar has been singing in choirs from a young age but started private lessons with Hanna Björk Guðjónsdóttur at the age of 13 at Domus Vox. Sigur started studying at Menntaskoli í tónlist (Music College) and studied under the guidance of Sigrún Hjálmtýsdóttir. They are now on the second year in classical singing at IUA.

Offer the course of their carrier has Sigur participated singing in Gilitrutt, Hansel and Gretel and the Magic Flute.