Grace Slick, or Janis Joplin. This makes sense as each was a part of at least one monumental album from the time. But, for my taste, the lady with the best pipes was Petula Clark, despite being a lowly “singles artist” without a single BIG album to her credit...
Like you, I absolutely loved that song. However, I really fell in love with Clark's singing when I saw and heard her in the film "Goodbye, Mr. Chips" (1969). She was perfect for that role. I completely wore out two copies of the soundtrack, and consider myself quite lucky to ...