Iconic musician David Crosby has died at the age of 81, DailyMail.com has confirmed.The member of the band the Byrds and Crosby, Stills & Nash died Thursday 'after a long illness,' his wife Jan Dance told Variety. 'It is with great sadness after a long illness, that our beloved David (Croz) Crosby has passed away,' she said in the statement. 'He was lovingly surrounded by his wife and soulmate Jan and son Django.