 Not only did he continue to be very active in radio, but he also signed with Decca Records and became a member of the Metropolitan Opera.While at Decca, he recorded operettas and popular songs, and was a vocalist with the Guy Lombardo and Russ Morgan orchestras.For his debut at the Met, Knight sang the role of Count Almaviva in "Il barbiere di Siviglia", the same role he did in the English-language version of the opera "Once Over Lightly" four years prior.