godlikePaul - the lyrics are: "C'est le plus beau/et c'est le plus triste/c'est le plus beau/paysage de monde", which seems to be a quotation from the last page of Le Petit Prince - "Ça c’est, pour moi, le plus beau et le plus triste paysage du monde." - "It is, for me, the most beautiful and the saddest country in the world".
They did this as their encore the last time I saw them live... the crowd went absolutely wild. Very memorable. On an unrelated note: I still have the setlist (with John Cage Bubblegum written at the bottom) which was taped to one of the keyboards. :o)
The first time I read the lyrics to this (and translated, of course, not knowing french as I don't), I thought ...no, she couldn't be talking about In A Landscape.. .. ..could she?
I do believe that she is, in fact, singing about what I believed her to be singing about, therefore leading to my unnatural fixation upon Laetitia Sadier.