Cool video using prepared piano to get a hip hop beat

Hey Kids - take a look at this one!  These guys are using a "Prepared Piano."  Prepared Piano is where you alter the regular sound of the piano, usually by placing something on or through the strings that add a different sound.  The tune they use is an old jazz standard, but they've re-imagined it so that it sounds very cool.  Duets for the spring recital anyone??