If someone told you that Russian Prime Minister Vladimir Putin sang “Blueberry Hill” to a hockey rink full of people, including Sharon Stone, Goldie Hawn, Kurt Russell, Kevin Costner, Gerard Depardieu and Mickey Rourke, would you need video proof? Well, here it is.

During a cancer benefit in St. Petersburg Friday night, Putin played a little diddy on the piano (oddly, from a Soviet-era spy movie) and then took to the mic, admitting that, "like an overwhelming majority of people, I can neither sing nor play but I very much like doing it.”

Hey -- that's showbiz!