1981 Half-Speed Stereo Remaster. NM- jacket, small seam bump. Includes Lyric Sheet. A Must Have Classic Benchmark 70's Rock n Roll Album. It was the fourth studio album by the British progressive rock band and was produced by Ian Anderson and Terry Ellis. The album was a critical and commercial success, reaching number four on the UK album charts and number seven on the US Billboard 200.

The album is a concept album that addresses themes such as religion, society, and personal identity. The title track, "Aqualung," is a commentary on the hypocrisy of organized religion and the plight of the homeless. Other notable tracks on the album include "Cross-Eyed Mary," "Locomotive Breath," and "My God."

The recording sessions for the album were reportedly difficult, with tensions arising between band members and producers. However, the result was a critically acclaimed album that has been regarded as one of the band's best and a significant contribution to the progressive rock genre. In 2005, a 40th-anniversary edition of the album was released, which included a remastered version of the original album and bonus tracks.