There's a lot you can say about Noel Harrison. He was the son of Rex Harrison. A champion of the giant slalom, Harrison went to two Olympics.
And his performance of this song won the 1968 Oscar for Best Original Song. Featured in The Thomas Crown Affair, it is by far the biggest hit he ever had. Here's a little bit of trivia for you - the 1967 Oscar for Best Original Song went to "Talk To The Animals" from Doctor Dolittle. The performer on that song? Noel's father, Rex Harrison.
Enjoy one of the greatest songs written for a movie (according to the American Film Institute - that isn't just me making up superlatives).