Released in 1974, ¡Sesame Mucho! was Sesame Street 's first bilingual album. The album featured guest stars Malo, José Feliciano, and Vikki Carr singing with the Muppets and human cast, as they taught them Spanish words and phrases. The first edition of the album included all of the lyrics to the songs printed on the inner sleeve. This album was later re-issued under the title Welcome!