Grex Vocalis is a Norwegian chamber choir, formed in 1971 by Carl Høgset. The repertoire spans from the renaissance to music by contemporary composers. The choir has been awarded the Norwegian Spellemannprisen prize for three of its thirteen albums and has won first prizes in national and international contests. In 1999 Grex Vocalis was awarded Il Gran Premio Città di Arezzo as the overall best choir in that year's contest. Grex Vocalis is primarily an a cappella choir, comprising ca. 35 singers, but performs on occasion also with soloists and orchestras. They have toured extensively in Europe, and also given a series of concerts in Japan and Cuba.