Manayangath Subramanian Viswanathan (24 June 1928 – 14 July 2015), also known as M.S.V., was an Indian music director, composer, and singer. He was popularly known as "Mellisai Mannar" (Tamil for "The King of Light Music"). He composed songs in 1200 movies from Tamil, Malayalam, Telugu, Kannada, and Hindi languages. He worked primarily in Tamil, Malayalam and Telugu movies.