Graham Nash turns 70 today, born in Lancashire, England on February 2, 1942.

His stunning tenor voice in The Hollies and Crosby, Stills and Nash and (sometimes) Young, and his obvious talent for songwriting (he wrote most of CSN's hits, including Marrakesh Express, in addition to penning songs for CSNY) have made him a living legend.

Here's Graham with David Crosby in a poignant song where their spine-tingling harmonies rule: