Love is blue - 3 versions

In 1967, Vicky Leandros sang 'L'amour est blue' for the Eurovision Song Contest. As 'Love is blue' several versions were made of this song. Here are, besides the original version, two of them:

http://www.youtube.com/watch?v=nD4ib9-laGY

The Dells:

http://www.youtube.com/watch?v=I5eq0fjdesI

Paul Mauriat:

http://www.youtube.com/watch?v=VIKpko4Ln90