"Keyboard Cat"? Been there, done that. But a keyboard made from cats. Yup, that's different.

The genius behind this unusual innovation is "sound sculptor" Henry Dagg. The world first got a taste of his cat organ back in 2010, when he played it during a benefit in London. The event gained notoriety because Prince Charles, who was in attendance, couldn't stop laughing at the squeaky instrument.

While we'd have to say that the cat organ is quite an entertaining device, that sweet rendition of 'Somewhere Over The Rainbow' was also fairly touching.

And don't worry, those are not real cats. That would be cruel.