Hjetland completed her bachelor's degree in folk music at the Carl Nielsen Academy of Music in Odense. She was awarded a master's degree in folk music from the Ole Bull Academy in Voss, Norway (part of the University of Bergen).
Born to a Danish mother and a Norwegian father, Hjetland records in eight Nordic languages. She is the frontwoman of the Danish folk band Basco, also performing folk-influenced electronic music as part of her project Lukkif. Paste magazine describes Hjetland a "shining light of the Danish Nordic roots scene" and praises her "huge vocal range". Hjetland has also collaborated with the Danish musician and composer Henrik Marstal to form a duo combining elements of folk, dream-pop and ambient music.