Dancing Girls in Colourful Rays by Ernst Ludwig Kirchner was a German expressionist painter and printmaker and one of the founders of the artists group Die Brücke or "The Bridge", a key group leading to the foundation of Expressionism in 20th century art. He volunteered for army service in the First World War, but soon suffered a breakdown and was discharged. In 1933, his work was branded as "degenerate" by the Nazis and in 1937 over 600 of his works were sold.