The genius of Kamalhaasan

I was blown away by the song Neela Vaanam from the movie Manmadhan Ambu when i saw it in the theater. Kamalhaasan is a genius without doubt. I can't believe that he managed to mouth the words to the song forwards for a song which was completely meant to be played backwards! He does it with such perfect sync.. it's amazing! Check it out for yourself! There are no graphics involved in morphing his lips alone!