David Crosby dead: The Byrds, featuring, from left, David Crosby, Chris Hillman, Gene Clark, Michael Clarke and Jim McGuinn performed on "The Ed Sullivan Show on Dec.. 12, 1965. (Michael Ochs Archives)
David Crosby: The Byrds perform at New York's Yankee Stadium in June 1966. From left, bass player Chris Hillman, drummer Michael Clarke, guitarist David Crosby and frontman Jim McGuinn, later known as Roger McGuinn. (Antonia Hille/Getty Images)
David Crosby dead: Graham Nash, David Crosby and Neil Young of Cosby Stills Nash and Young perform onstage at The Altamont Speedway on Dec. 6, 1969 in Livermore, California. (Robert Altman/Getty Images)
David Crosby dead: From left, Stephen Stills, David Crosby, Graham Nash, Joni Mitchell and Neil Young perform at Wembley Stadium in 1974. (David Warner Ellis/Redferns)
David Crosby dead: David Crosby performed live in Japan in 1975 at Nippon Budokan in Tokyo. (Koh Hasebe/Shinko Music/Getty Images)
David Crosby dead: Stephen Stills, David Crosby and Graham Nash, perform on stage during a concert during the 1980s in Los Angeles. (Lester Cohen/Getty Images)
David Crosby dead: David Crosby in New York City in 1984. (Ebet Roberts/Redferns)
David Crosby dead: David Crosby, left, reunited with Byrds bandmates Chris Hillman and Roger McGuinn during the Roy Orbison Tribute Gala in 1990. (Michael Ochs Archives/Getty Images)
David Crosby dead: David Crosby and his wife, Jan Dance, in 1991. (Paul Harris/Getty Images)
David Crosby dead: David Crosby rides on his motorcycle to his California home in 1991. (Paul Harris/Getty Images)
David Crosby dead: David Crosby and Graham Nash perform at the No Nukes concert in August 1995. (Tim Mosenfelder/Getty Images)
David Crosby dead: The singer-songwriter and guitarist was 81. (Valerie Macon/AFP via Getty Images)