The one-man band is a rather ridiculous idea, drawing up images of one person attempting to manipulate several instruments, at once, in a vain attempt at creating music. It's usually represented by silly scenes like this. Interestingly, the concept isn't much more successful when the "man" in "one-man band" is replaced with "car," as we see in this video.
This isn't the first time we've seen music made with the help of cars, but it's pretty inventive all the same. Walk Off The Earth, a Canadian band perhaps best known for its cover of Gotye's "Somebody That I Used To Know," teamed up with Volkswagen to film its latest music video.