Scary Warren Buffett rocks out for Geico, in a skirt

How did billionaire investor Warren Buffett get to be so rich? He does his own commercials, at least for Geico, the car insurer owned by his Berkshire Hathaway Corp.

Buffett plays the scary superannuated rocker first glimpsed at 0:28 and, more recognizably, around 1:45, in this karaoke (or are they really singing?) office worker/lizard mascot video, posted by Geico to YouTube here.