Wish You Were Here is the ninth studio album by the English rock band Pink Floyd, released on 12 September 1975 through Harvest Records and Columbia Records, their first release for the latter. Based on material Pink Floyd composed while performing in Europe, Wish You Were Here was recorded over numerous sessions throughout 1975 at Abbey Road Studios in London.
 
The album's themes include criticism of the music business, alienation, and a tribute to founding member Syd Barrett, who left seven years earlier with deteriorating mental health. Like their previous record, The Dark Side of the Moon (1973), Pink Floyd used studio effects and synthesisers. Guest singers included Roy Harper, who provided the lead vocals on "Have a Cigar", and Venetta Fields, who added backing vocals to "Shine On You Crazy Diamond". To promote the album, the band released the double A-side single "Have a Cigar" / "Welcome to the Machine".
 
Wish You Were Here received mixed reviews from critics on its release, who found its music uninspiring and inferior to their previous work. It has retrospectively received critical acclaim, hailed as one of the greatest albums of all time, and was cited by keyboardist Richard Wright and guitarist David Gilmour as their favourite Pink Floyd album. It reached number one in the US and UK and Harvest's parent company, EMI, was unable to keep up with the demand. Since then, the record has sold over 20 million copies.