Déjà Vu is the second studio album by the American folk rock group Crosby, Stills & Nash, and their first as a quartet with the addition of Neil Young. It was released in March 1970 by Atlantic Records. It topped the pop album chart for one week and generated three Top 40 singles: "Woodstock", "Teach Your Children", and "Our House". It was re-released in 1977 and an expanded edition was released in 2021 to mark its fiftieth anniversary. In 2003, the album was ranked No. 148 on Rolling Stone magazine's list of the 500 greatest albums of all time, and later was ranked No. 220 on the 2020 edition of the list. Certified 7× platinum by RIAA, the album's sales currently sit at over 8 million copies. It remains the highest-selling album of each member's career to date. Recording The album was recorded between July 1969 and January 1970 at Wally Heider's Studio C in San Francisco, and Wally Heider's Studio 3 in Hollywood. It was produced by all four members of the band. Stephen Stills estimates that the album took around 800 hours of studio time to record; this figure may be exaggerated, even though the individual tracks display meticulous attention to detail. The songs, except for "Woodstock", were recorded as individual sessions by each member, with each contributing whatever was needed that could be agreed upon. Young appears on only half of the tracks with Nash stating he "generally recorded his tracks alone in Los Angeles then brought them back to the recording studio to put our voices on, then took it away to mix it". Young's "Helpless" was released on his Neil Young Archives Vol. 1 (1963-1972) in 2009 in a different mix with a harmonica introduction. His other contribution, "Country Girl", combined two Buffalo Springfield songs, "Down, Down, Down" and "Whiskey Boot Hill," (also released on his Archives) with a recently written title chorus. Commenting on the album to Hit Parader in 1971, Stills stated "getting that second album out of us was like pulling teeth, there was song after song that didn't make it. The track "Déjà Vu" must have meant 100 takes in the studio. But "Carry On" happened in a grand total of eight hours from conception to finished master. So you never know.” It was during these sessions that Crosby would break down and cry due to the recent death of his