"Harmony", the album's final track, was considered as a fourth single, but was not issued at the time because the chart longevity of the album and its singles brought it too close to the upcoming releases of "Caribou" and its proposed accompanying singles. It was, however, used as the B-side of the American release of the "Bennie and the Jets" single, and was popular on FM playlists of the day, especially WBZ-FM in Boston, whose top 40 chart allowed for the inclusion of LP cuts and B-sides as voted for by listeners. "Harmony" spent three weeks at no. 1 on WBZ-FM's chart in June 1974 and ranked no. 6 for the year, with "Bennie and the Jets" at no. 1 and "Don't Let the Sun Go Down on Me" behind "Harmony" at no. 7. "Harmony" was released as a single in Britain in 1980 and failed to chart.