This is a pretty cool example of how to make a crowd sourced video; you go to the site and it grabs hold of your webcam then you can sing karaoke style to "Lollipop" by The Chordettes. It automatically comps your clip into a massive grid with hundreds of other people and mixes the audio. It is a competition run by Dell and MTV together to win laptops and front row tickets to the Berlin EMA's in a month or so » See How It Works Here » Promo Clip Here