The Dark Side of the Moon is the eighth studio album by the English progressive rock band Pink Floyd, released on 1 March 1973.
Developed during live performances, an early version of the suite was premiered several months before studio recording began; new material was recorded in two sessions in 1972 and 1973 at Abbey Road Studios in London. The group used some of the most advanced recording techniques of the time, including multitrack recording and tape loops. Analogue synthesizers were given prominence in several tracks, and a series of recorded interviews with the band's road crew and others provided the philosophical quotations used throughout. Engineer Alan Parsons was responsible for some of the album's most notable sonic aspects and the recruitment of non-lexical singer Clare Torry. The album's sleeve, designed by Storm Thorgerson, features a prism that represents the band's stage lighting, the record's lyrical themes, and keyboardist Richard Wright's request for a "simple and bold" design.
The Dark Side of the Moon was an immediate success; it topped the Billboard Top LPs & Tapes chart for one week and remained in the charts for 741 weeks from 1973 to 1988. With an estimated 50 million copies sold, it is Pink Floyd's most commercially successful album and one of the best-selling albums worldwide. It has twice been remastered and re-released, and has been covered in its entirety by several other acts. It produced two singles, "Money" and "Time".