Joseph Guilherme Raposo, OIH was an American composer and songwriter. He is best known for his work on the children's television series Sesame Street, for which he wrote the theme song, and several notable songs, including "Bein' Green", "C Is For Cookie" and "Sing". He also wrote music for other television shows including The Electric Company, Shining Time Station and the sitcoms Three's Company and The Ropers, including their theme songs. Additionally, he composed scores for three Dr. Seuss television specials produced by DePatie–Freleng Enterprises: Halloween Is Grinch Night (1977), Pontoffel Pock, Where Are You? (1980), and The Grinch Grinches the Cat in the Hat (1982).