Graham Nash is an influential British-American singer-songwriter known for his light tenor voice and his politically charged, introspective lyrics. A pivotal figure in the folk-rock movement, he was a member of two of the most significant bands in the genre: The Hollies and Crosby, Stills & Nash. Nash's music typically utilizes harmonious vocals and acoustic instruments, a hallmark of his work with both bands. His solo pieces, such as "Chicago" and "Military Madness", are noted for their social commentary, demonstrating his commitment to using music as a platform for activism.