David Crosby & Graham Nash at UPAC, Kingston

David Crosby and Graham Nash, one half of one of popular music's greatest groups, Crosby, Stills, Nash & Young, began writing and playing together nearly 40 years ago and their extraordinary brand of mellow harmonies have become one of rock's trademarks. As a duo they have released such albums as "Whistling Down the Wire", "Wind on the Water" and their latest self titled double album, "Crosby & Nash".