This is kind of like that bush from the Three Amigos. It's basically a plant wired up to a theremin. Using custom-designed software (obviously, they didn't have MySingingPlant 2.5 for OS X available to them), the plant triggers various samples based. That's not all, sensors detect when people are near the plant so a little spotlight shines on the plant. Made by Mads H bye and smund Boye Kverneland, the plant has received great acclaim from everyone who has encountered it so far, namely Mads and Asmud's parents.
Singing Plant [WMMNA]