Ad Rant: Warren Buffett does his best Axl Rose for Geico

There are plenty of old geezers who wish they could rock out like Axl Rose just once in this lifetime, but Warren Buffett has made it a reality.

Sizzling up the Internet right now is a new ad for Geico that has the normally unassuming tycoon, champion stock-picker and philanthropist joining in an earnest power ballad about the pleasures of working in customer service.

"We're always true to youuuu," he croons, without irony. (That is, aside from the irony of dressing up like the lead singer of Guns 'N' Roses.)

Why Warren Buffett and not all the other 79-year-olds whose voices are better than his and who would also like the chance to sport tattoos and a purple bandana?

Because Buffett is the third-richest man in the world, for one thing. And because Geico is a subsidiary of his company, Berkshire-Hathaway, for another.