Shaft is a double album by Isaac Hayes, recorded for Stax Records' Enterprise label as the soundtrack LP for Metro-Goldwyn-Mayer's 1971 blaxploitation film Shaft. The album mostly consists of instrumentals composed by Hayes as score for the film. Three vocal selections are included: "Soulsville", "Do Your Thing", and "Theme from Shaft". A commercial and critical success, Shaft is Hayes' best-known work and the best-selling LP ever released on a Stax label. In 2014, the album was added to the National Recording Registry by the Library of Congress for being "culturally, historically, or aesthetically significant." Conception Hayes initially became involved with Shaft in hopes of having director Gordon Parks cast him in the title role, because he was not aware that Richard Roundtree had already been cast as John Shaft. Hayes did appear in the film in a cameo role, but, more significantly, composed the film's score. While the film was still in production, Parks sent Hayes raw footage of some of the film's scenes, and Hayes wrote three pieces for the scenes: "Theme from Shaft" for the opening title sequence, "Soulsville" for a scene in which Shaft walks through Harlem, and "Ellie's Love Theme" for a love scene. Pleased with the results, MGM hired Hayes to compose the rest of the score, and Hayes spent two months working between tour dates on the score at the MGM studio. Once the score was composed and arranged, Hayes recorded the rhythm tracks with Stax band The Bar-Kays in one day. The orchestral tracks were recorded the next day, and the vocals the day after that. The songs were later re-recorded for the album at Stax Studios and slightly rearranged from their film versions: MGM's recording facility was based upon a three-track system, and Hayes wanted a richer sound for the album). Reception Upon its release in the summer of 1971, Shaft became the first double album of original studio material released by an R&B artist. The album peaked at number one on The Billboard 200 chart, and spent sixty weeks on the chart. It took the top position on the Top R&B Albums chart for 14 weeks. It achieved Platinum status within a month of its release. Both "Theme from Shaft" and "Do Your Thing" became Top 40 singles on the Billboard Hot 100 chart, with the former peaking at number one. At the 1972 Grammy Awards, "Theme from Shaft" won the