"A Promise" is the fourth single by Echo & the Bunnymen and was released on 10 July 1981. It stayed on the UK Singles Chart for four weeks and peaked at number 49. Apart from the Australian only release of "Over the Wall" later in the year, "A Promise" is the only single to have been released from the band's second album, Heaven Up Here (1981).
The b-side to both the 7" and 12" versions of the single is "Broke My Neck" which was recorded at Tistedal Studios in Tistedal, Norway on 7 June 1981. On the 7" "Broke My Neck" is referred to as the "live" version, but it is, in fact, an edit of the longer 12" version of the song which was a studio recording. The Belgian release of the 7" contains the extra track "Do It Clean", which had previously been the b-side of 1980's "The Puppet" and would again be a b-side on 1984's "The Killing Moon".