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`` Sing '' is a 1971 song written by Joe Raposo for the children 's television show Sesame Street .. Joe Raposo. Joe Raposo. Sesame Street. Sesame Street. In 1973 , the song gained popularity when performed by the Carpenters , who made it a # 3 hit on the Billboard Hot 100 .. the Carpenters. the Carpenters. Raposo was one of the staff songwriters on Sesame Street , and the song became one of the most popular on the program , sung in English , Spanish , and sign language .. Sesame Street. Sesame Street. English. English language. Spanish. Spanish language. sign language. sign language. In its initial appearance , the song was sung by adult human cast members of the show -LRB- the most frequent lead singer was Bob McGrath -RRB- and Muppets , including Big Bird .. Bob McGrath. Bob McGrath. Big Bird. Big Bird. Barbra Streisand 's 1972 version of `` Sing '' was released as a single , reaching number 28 on the Easy Listening chart and number 98 on the Billboard Hot 100 .. Barbra Streisand. Barbra Streisand. Easy Listening. Adult Contemporary ( chart ). Many other versions of the song have since been recorded by a variety of artists including Trini Lopez who recorded a Spanish language version in 1972 which appeared on his album , `` Viva '' -LRB- 1972 -RRB- .. Spanish. Spanish language. Trini Lopez. Trini Lopez