From chuckieart on YouTube:

“http://www.playhimoffkeyboardcat.com – Keyboard Cat went to Hollywood and made a commercial for Wonderful Pistachios! Bento even met Perez Hilton and Rod Blagojevich! Get crackin!”

Really, Rod Blagojevich?!

Also on matrixsynth. The keyboard in this case is the classic Ensoniq Mirage.