Though I bet Anil has seenit, here’s a brilliant goofy video from the Vimeo crew called Auto Tuning:

http://vimeo.com/moogaloop.swf?clip_id=3718294&server=vimeo.com&show_title=1&show_byline=0&show_portrait=0&color=00adef&fullscreen=1
Auto Tuning from Casey D on Vimeo.