Name comes from the refrain of The Silhouettes' rock and roll classic "Get a Job". Sha Na Na began as an a capella lark by some Columbia University students in the late 60s; they added a band, and lucked into an important gig - Woodstock. It got better: the Rock and Roll Revival made their all-50s repertoire popular. The boom faded, but they had their own syndicated variety show by decade's end. Now on the nostalgia circuit, for those nostalgic for those 70s days of 50s nostalgia.