Saturday Morning Music Video: Sleep
This is the second of the Virtual Choir videos by American composer Eric Whitacre, who wrote the music and then assembled a virtual choir of singers from 58 countries to sing it. The song is called "Sleep." First you will hear the choir sing, and then see the credits while you listen to the song played again on the piano. This must be a lot of fun for everyone involved.
More more information, see Mr. Whitacre's website.