David Crosby (1941–2023) was an influential American singer, songwriter, and guitarist. He gained early fame as a founding member of The Byrds, helping to shape folk rock and psychedelic music in the 1960s. He later achieved success with the supergroup Crosby, Stills & Nash, and occasionally Crosby, Stills, Nash & Young, playing a key role in defining the California sound of the 1970s. Known for his distinctive harmonies and songwriting, Crosby also released several solo albums and collaborated with artists such as Joni Mitchell, Jackson Browne, and David Gilmour. His career was marked by both musical achievements and a reputation as a symbol of 1960s counterculture. Twice inducted into the Rock and Roll Hall of Fame—for his work with The Byrds and CSN—Crosby's influence spans generations, with over 35 million albums sold and multiple classic albums recognized among the greatest of all time.