Klaatu - "Calling occupants of the interplanetary craft"

Klaatu: Years ago when this group was popular I bought a cassette tape containing this and other Klaatu songs, "Calling occupants of the interplanetary craft." There is another one I was trying to find but this will have to wait. Some thought the group was the Beatles but I'm not sure that is the case. Enjoy this tune though! I know I have for years. - Volker