Crosby, Stills & Nash (CSN) is a folk rock supergroup made up of American singer-songwriters DavidCrosby and Stephen Stills, and English singer-songwriter Graham Nash. When joined by Canadian singer-songwriter Neil Young as a fourth member, they are called Crosby, Stills, Nash & Young (CSNY). They are noted for their intricate vocal harmonies, often tumultuous interpersonal relationships, political activism, and lasting influence on American music and culture.
Crosby, Stills & Nash were inducted into the Rock and Roll Hall of Fame and all three members were also inducted for their work in other groups (Crosby for the Byrds, Stills for Buffalo Springfieldand Nash for the Hollies). Neil Young has also been inducted as a solo artist and as a member of Buffalo Springfield but not as a member of CSN. They have not made a group studio album since 1999's Looking Forward, and have been inactive as a performing unit since the end of 2015. Whether or not this break is permanent remains to be seen, as the group has often been inactive for years at a time.