American and British folk rock supergroup

Claude says:Four ex-members of the Byrds, Buffalo Springfield, and the Hollies who discovered their harmonies meshed perfectly in 1968 — their 1970 album Déjà Vu sold over eight million copies and made them legends of Laurel Canyon folk rock. You've got a handful of plays scattered across eight years, mostly "Our House" and "Teach Your Children," the kind of songs everyone knows but nobody plans to put on.