Crosby, Stills & Nash was a renowned American folk rock supergroup formed in 1968 by David Crosby, Stephen Stills, and Graham Nash. Known for their rich vocal harmonies and profound impact on American music, they quickly rose to fame with their debut album featuring hits like Suite Judy Blue Eyes and Marrakesh Express. With the addition of Neil Young, they became Crosby, Stills, Nash & Young and played a key set at Woodstock in 1969. Their best-selling album, Déjà Vu, included classics such as Woodstock, Teach Your Children, and Our House. Despite frequent internal conflicts and breakups, the group reunited for several tours and albums over the years. Crosby, Stills & Nash were inducted into the Rock and Roll Hall of Fame, also receiving recognition for their earlier work in other legendary bands. Their influence continues to shape folk and rock music today.