Things you should know about Vladimir Putin

 In December 2010, Putin took another opportunity to perform for his adoring Russian public - this time by signing a rendition of Blueberry Hill in front of a star-studded audience at a charity event in St Petersburg. Putin also attempted to play From Where The Motherland Begins, a Soviet-era song, on the piano but hit a wrong note and stopped. Amazingly, the crowd at the event included a host of famous faces - with actors Kevin Costner, Gerard Depardieu and Sharon Stone among them.