David Crosby (August 14, 1941 – January 18, 2023) was an iconic American singer, songwriter, and guitarist whose distinctive harmonies and influential work helped shape folk-rock and classic rock. Born in Los Angeles to a cinematographer father and a musically inclined mother, Crosby began his career in the early 1960s folk scene before co-founding The Byrds in 1964. The band pioneered folk-rock with hits like their 1965 cover of Bob Dylan's "Mr. Tambourine Man" (a No. 1 single) and classics such as "Turn! Turn! Turn!" He contributed to their first five albums before leaving in 1968 amid tensions. In 1968, he formed Crosby, Stills & Nash (CSN) with Stephen Stills and Graham Nash — their self-titled 1969 debut won a Grammy for Best New Artist. The group occasionally expanded to Crosby, Stills, Nash & Young (CSNY) with Neil Young, producing legendary albums like Déjà Vu (1970) and performing at major events like Woodstock. Crosby released his acclaimed solo debut If I Could Only Remember My Name in 1971 and later enjoyed a prolific late-career renaissance, releasing five albums between 2014 and 2021 (including Croz, Lighthouse, and For Free). He also formed the jazz-influenced trio CPR with his son James Raymond in the 1990s. His life was marked by significant challenges: severe drug addiction (heroin and cocaine) led to prison time in the 1980s, multiple arrests, and a life-saving liver transplant in 1994 due to hepatitis C. He battled diabetes, heart issues, and other health problems. Crosby was politically outspoken, a longtime cannabis advocate (he even launched his own brand), and fathered six children, including through sperm donation (two with Melissa Etheridge). Despite personal turbulence and sometimes strained band relationships, Crosby's angelic harmonies and songwriting left an enduring legacy — he's a two-time Rock & Roll Hall of Fame inductee (with The Byrds and CSN). He passed away at 81 in Santa Ynez, California, after a long illness (reportedly following a bout with COVID-19). His music continues to inspire, with tributes and tribute shows still happening years later.