From Napster to Plaxo to Facebook, Sean Parker has proven he knows how to pick future hits. In August of 2009 he discovered Spotify. "In order to create the next revolution in digital music I believe that you must BOTH meet and exceed the bar set by Napster a decade ago. You guys have finally done it," Parker wrote then in a impassioned letter to Spotify founder Daniel Ek. Read the full text of that letter here:

Sean Parker 's Email to Spotify's Daniel Ek