Pink Lady: "UFO": circa 1977 

http://www.youtube.com/watch?v=XS51heRa1-E 

Pink Lady (ピンク・レディー Pinku Redī) is a Japanese female pop music duo of the late 1970s and early 1980s, featuring Mitsuyo Nemoto ("Mie" born March 9, 1958) and Keiko Masuda ("Kei" born September 2, 1957). In Japan, they are remembered for a run of pop-chart hits from roughly 1976 to 1979, but in the United States, they are best known for their short-lived 1980 NBC TV variety show Pink Lady, later released on DVD under the title Pink Lady and Jeff.

http://en.wikipedia.org/wiki/Pink_Lady_%28band%29

(One of the favorite songs @ International School @ Tokyo during the period)