A live jam between three of modern rock's biggest names - Dave Grohl, Josh Homme and Trent Reznor - has been posted to YouTube, which you can see in the player below.
The clip shows them recording "Mantra" at Sound City Studios for Grohl's "Sound City: Real To Reel" movie soundtrack. The final song includes vocals from Grohl and Reznor, but it's cool to see and hear them smashing out the base track in real time.
If you like the sound of this jam, you'll be pleased to know that Grohl and Reznor both appear on Homme's forthcoming Queen Of The Stone Age record, among plenty of other premier musicians including Mark Lanegan and Elton John.
Watch the trio recording "Mantra" here:
If you haven't heard the full Sound City soundtrack, check it out in full here:
What do you think of the performance by this short-term supergroup? Let us know in the comments.