Joseph Guilherme Raposo, OIH (February 8, 1937 – February 5, 1989) was a Portuguese-American composer, songwriter, pianist, television writer and lyricist, best known for his work on the children's television series Sesame Street, for which he wrote the theme song, as well as classic songs such as "Bein' Green" and "C is for Cookie".

During that interim, Raposo continued to collaborate with Henson, scoring the pilot The Muppet Show: Sex and Violence (originating the "At the Dance" theme used on The Muppet Show) and both songs and score for The Great Muppet Caper, which garnered him an Academy Award nomination for "The First Time It Happens." He also worked on The Fantastic Miss Piggy Show and composed and produced all songs for Miss Piggy's Aerobique Exercise Workout Album.