provisionally entitled Commercial Breaks (doesn't it?) and was (in his own words) "outlawed" by the record company. From 1975 to 1980 Harper worked with English musician and 'Black Sheep' member Andy Roberts sometimes performing as a duo. During this period, Harper spent considerable time in the United States and signed with the US division of Chrysalis Records, who released HQ under a different title – When an Old Cricketer Leaves the Crease – and with alternative artwork. Chrysalis considered the original Hipgnosis-designed album cover of Harper walking on water to be too offensive for an American release. Harper disagreed, but was given no choice by the label. Chrysalis also changed the title of Harper's next album, Bullinamingvase, to One of Those Days in England. In 1978, US Chrysalis reissued Harper's first five Harvest albums, only one of which (Flat, Baroque and Berserk) had been previously released in America. On 28 December 1979, BBC TV aired the Kate Bush Christmas Special. As well as playing songs from her first two albums, Bush and her guest, Peter Gabriel, performed Harper's "Another Day". Their duet was discussed for release as a single, but never appeared. Harper returned to the studio a few years after his dispute with EMI to record and prepare his next album The Unknown Soldier. At the time, Harper knew it would be his last release on the label and it was these demos that "...were destined to gather dust on a shelf labelled 'Commercial Breaks'...". (It was not until Harper's 1988 release Loony on the Bus that some of these songs became officially available, and another six years until the album was finally released as Commercial Breaks (1994)). In 1980 Harper released The Unknown Soldier, which was indeed his final Harvest release. The album features David Gilmour both on guitar and as co-writer of half of its tracks. On one of those tracks, "You", Harper duets with Kate Bush. Harper later reciprocated by singing backing vocals on "Breathing" on Bush's album Never For Ever; Bush's first no. 1 album, the first ever album by a British female solo artist to top the UK album chart, and the first album by any female solo artist to enter the chart at no. 1. Bush thanked Harper on the album's cover for "holding onto the poet in his music". During a BBC Radio interview by Paul Gambaccini, Bush praised Harper, stating: Of