I think it's something that Paul Bliss knocked up on his synthesizer. If you listen to it closely it definitely has that slight electronic tone that you get when you recreate an acoustic instrument with an analog synth. (God I'm sounding anal retentive, sorry) The tune seems to be a simple eight note sequence that is repeated. It does sound really nice, one of those little tunes that transport you back to your childhood.
I like parties, I like fun, I want to live in a hamburger bun!