Crosby, Stills, Nash

Crosby, Stills & Nash (CSN) are a folk rock/rock supergroup.
Made up of David Crosby, Stephen Stills and Graham Nash, they were also known as Crosby, Stills, Nash & Young (CSNY) when joined by occasional fourth member Neil Young.
The band has continued to be associated with political causes throughout its existence.
In 2006, Crosby, Stills, Nash and Young set off on their "Freedom of Speech" tour in support of Young's album Living with War.