Tiësto & Jónsi of Sigur Rós "Kaleidoscope"

Listen to Tiësto's song "Kaleidoscope" with vocals by Jónsi (Jón Þór Birgisson) of Sigur Rós, Riceboy Sleeps, Frakkur fame.
But you can listen to the Song @ Pitchfork (30 seconds!).