Written by Chris Lowe and Neil Tennant, “Heart” was the fourth and final single from the duo’s second studio album, Actually. A new mix different to the album version was released as a single in March 1988, ascending to the top of the charts to become the duo’s fourth and, to date, last UK number one single. The lyrics are more traditional than most Pet Shop Boys songs, being a straightforward declaration of love.
Music video directed by Jack Bond, director of the band’s 1987 film It Couldn’t Happen Here, the music video for “Heart” is based on the 1922 film Nosferatu. The video was shot in Mokrice Castle, Slovenia.