It was about 5 years ago that I heard this song. I liked it so much that I listened to it for several times in a row everyday until I have perfected the melody when I sing it. And ever since, I sing the song when I go videoke.
Below is the video in youtube.com:
The 1967 version by Nancy Sinatra and Lee Hazlewood: http://www.youtube.com/watch?v=mQiDs9tKZv4
The version by The Corrs and Bono: http://www.youtube.com/watch?v=Bj6nhpC5Qbo