"Taxi" is a song written by Harry Chapin, released as a single in early 1972 to coincide with the release of its parent album Heads & Tales. Chapin debuted the song on NBC's The Tonight Show Starring Johnny Carson, which prompted calls and telegrams from viewers requesting that Chapin return to the show. It was the first time in the show's history that host Johnny Carson brought a performer back the very next night for an encore performance. "Taxi" helped to establish Chapin's musical style and emerged as the singer-songwriter's early signature song, with Chapin often associated with taxi-related imagery. Jim Connors, music director and disc jockey at Boston AM radio station WMEX, is credited with discovering Chapin. The single charted on both Boston stations WMEX and WRKO in late February