You know how, late in the evening when you and all your friends are half drunk and sitting around the campfire, you start talking about dream match-ups, duets that you'd love to see? Like getting Pearl Jam and Nirvana to play a song together. Or Zeppelin and The Who. Well, scratch this one off your list of long sought-after duets: Metallica and Herbie Hancock.
It's actually amazing how well that worked.