The sound and video quality of this clip are both quite remarkable. And doesn't Billie look gorgeous here? Here's some bio info, courtesy of Wikipedia. http://en.wikipedia.org/wiki/Billie_Davis
Billie Davis (born Carol Hedges, 22 December 1945, Woking, Surrey, England) is an English female singer who had hits in the 1960s, and is best remembered for the UK hit version of the song, "Tell Him" (1963) and "I Want You to Be My Baby" (1968).