In addition to solo careers and within the larger aggregate of Crosby, Stills, Nash & Young, the musical team of David Crosby and Graham Nash have performed and recorded regularly as a duo, mostly during the 1970s and the 2000s.

After the success of Déjà Vu and the subsequent break-up of the quartet in the summer of 1970, all four members of CSNY released solo albums. Crosby's If I Could Only Remember My Name and Nash's Songs for Beginners appeared in 1971 and missed the top ten. That autumn, the two good friends toured together as an acoustic duo to favorable reviews, one night from which would be released twenty-seven years later as Another Stoney Evening. Consequently, in 1972 the two decided to record an album, resulting in Graham Nash David Crosby, which reached #4 on the Billboard 200, ensuring that the two were still a viable draw without the more successful Stills and Young. Further work together later in 1972 was precluded by Crosby's participation in The Byrds' reunion album recording sessions. In 1973, the pair joined Neil Young for the tour that would result in his Time Fades Away album, Crosby collaborated with electronica artist and Grateful Dead associate Ned Lagin, and Nash recorded a second solo album, Wild Tales. During this time, singularly and together they contributed backing vocals to various albums by associates in the California rock scene, including Stephen Stills, Harvest, Late for the Sky, and Court and Spark.

David Van Cortlandt Crosby (born August 14, 1941) is an American guitarist, singer, and songwriter. In addition to his solo career, he was a founding member of three bands: The Byrds, Crosby, Stills & Nash (who are sometimes joined by Neil Young), and CPR. Crosby has been inducted into the Rock and Roll Hall of Fame twice: once for his work in The Byrds and once for his work with CSN.

David Crosby was born in Los Angeles, California. His parents were Aliph Van Cortlandt Whitehead and Floyd Crosby, an Academy Award winning cinematographer. He is also the younger brother of musician Ethan Crosby. Growing up in California, he attended several schools, including the University Elementary School in Los Angeles, the Crane Country Day School in Montecito, and Laguna Blanca School in Santa Barbara for the rest of his elementary school and junior high. At Crane, he starred in HMS Pinafore and other musicals but was asked not to return due to lack of academic progress. He graduated from the Cate School in Carpinteria, completing his studies by correspondence. In 1960, his parents divorced, and his father was remarried to Betty Christie Crosby.

Graham William Nash, OBE (born 2 February 1942) is an English singer-songwriter known for his light tenor voice and for his songwriting contributions with the British pop group The Hollies, and with the folk-rock super group Crosby, Stills, Nash & Young. Nash is a photography collector and a published photographer. Nash was inducted to the Rock and Roll Hall of Fame as a member of Crosby, Stills & Nash in 1997 and as a member of The Hollies in 2010.

Nash was appointed Officer of the Order of the British Empire (OBE) in the 2010 Birthday Honours for services to music and to charity.

Nash holds three honorary doctorates, the latest in Music from the University of Salford (England) in 2011.

Nash was born in Blackpool, Lancashire, England, in 1942, his mother having been evacuated there from the Nash's hometown of Salford, Lancashire because of the Second World War. The family subsequently returned to Salford, where Graham grew up. In the early 1960s he was co-founder with schoolfriend Allan Clarke of The Hollies. Nash was a leading 'group figurehead' member of The Hollies, one of the UK's most successful pop and "British Invasion" groups. Credited on the first album as 'Group Leader' and recognised as a key member of the group, plus their public spokesman, he occasionally took a lead vocal. Nash was featured vocally on 'Just One Look' in 1964, and sang his first lead vocal on the original Hollies song "To You My Love" on the band's second album In The Hollies Style (1964). He then progressed to often singing featured 'bridge vocals' on Hollies recordings; 'So Lonely', 'I've Been Wrong' 1965, 'Pay You Back With Interest' 1966 etc., also by 1966 Nash was providing a few solo lead vocals on Hollies albums & then from 1967 'B' sides to singles.

James Vernon Taylor (born March 12, 1948) is an American singer-songwriter and guitarist. A five-time Grammy Award winner, Taylor was inducted into the Rock & Roll Hall of Fame in 2000.

Taylor achieved his major breakthrough in 1970 with the #3 single "Fire and Rain" and had his first #1 hit the following year with "You've Got a Friend", a recording of Carole King's classic song. His 1976 Greatest Hits album was certified Diamond and has sold 12 million US copies. Following his 1977 album, JT, he has retained a large audience over the decades. His commercial achievements declined slightly until a big resurgence during the late 1990s and 2000s, when some of his best-selling and most-awarded albums (including Hourglass, October Road and Covers) were released.

James Taylor was born at Massachusetts General Hospital in Boston, Massachusetts, on March 12, 1948, where his father, Isaac M. Taylor, was a resident physician. His father was from a well-off family of Southern Scottish ancestry. His mother, the former Gertrude Woodard, had studied singing with Marie Sundelius at the New England Conservatory of Music and was an aspiring opera singer before the couple's marriage in 1946. James was the second of five children, the others being Alex (1947-1993), Kate (born 1949), Livingston (born 1950), and Hugh (born 1952).