British musician Graham Nash performs for a satellite radio show to promote his new retrospective boxed set in New York January 29, 2009. It took just 40 seconds, singing harmony with Stephen Stills and David Crosby, to convince Nash to take the musical step that led ultimately to the Rock 'n Roll Hall of Fame. Picture taken January 29, 2009. Reuters Pictures 10 months ago

British musician Graham Nash performs for a satellite radio show to promote his new retrospective boxed set in New York January 29, 2009. It took just 40 seconds, singing harmony with Stephen Stills and David Crosby, to convince Nash to take the musical step that led ultimately to the Rock 'n Roll Hall of Fame. Picture taken January 29, 2009.