Even if you've listened to different versions of Gorillaz's Feel Good Inc. every day since it was released, chances are you've never heard it played with the help of 2000 marbles.
YouTube user William Maranci is popular for his mash-ups, and this one is no different - mashing up Feel Good Inc. with sounds made by a marble machine made by Swedish band Wintergatan.
Wintergatan are a band that use a variety of unconventional instruments, with the marble machine their most impressive (though they've used typewriters, a musical saw, a slide projector and many other things to make music).
William has taken the sounds of the marble machine, and combined them with the vocals of Feel Good Inc., so it sounds like the instrumentation for the track is being played by a marble machine.
It's a pretty damn impressive mash-up, and it's definitely put a spin on Feel Good Inc. that we've never heard before. A good mash-up is one of the best music-related things you can experience - and this one is no different.
Check out the video below - it's a sight to behold.