Chords to K.K. Cruisin'?

[Wipomatic]

I'm not sure if this is the right place to ask, but does anyone happen to know what the chords to K.K. Cruisin' are? I was trying to work them out on the piano and I just can't get it to sound right. Here's a link to the song on youtube http://www.youtube.com/watch?v=pk74ApOw1ZQ