"Cathedral Song" is a song released as a single from the album Ancient Heart by Tanita Tikaram. It received a nice treatment on music video with an extended length video, portraying love story between two swimmers in a summer. The video was shot in black & white, and Tanita is featured only in studio footage, not on the external footages. The single peaked at #48 in UK. Most of video was filmed in Portugal in Praia Grande, Guincho beach, Estoril and Cristo Rei sanctuary.
WEA released a limited edition 7" EP box set which featured three prints from the video. Other formats also feature live tracks - "Over You All" (CD/7" box), "Let's Make Everybody Smile Today" (CD/12"/7" box) and "Fireflies In The Kitchen" (12"). No studio versions were recorded of the last two.
This song was covered by Brazilian singer Zélia Duncan. Her version, which features similar arrangement but lyrics in Portuguese, was released in her second homonymous album (1994) and became a smash hit in Brazil and "Catedral" (the Brazilian title of the song) is still considered a classic tune. The translated version has also been covered by Leandro, from the duo Leandro e Leonardo. The song was also covered by Renato Russo from the Legião Urbana band.