Barack Obama is known for keeping a cool head when the temperature rises around him, but this is one situation that's getting the better of him.
The US President recently visited Germany where he was speaking at Brandenburg Gate in Berlin, near the spot where JFK made his famous speech nearly 50 years ago - and it appeared the German capital was in the middle of a heatwave as Mr Obama could not stop the perspiration streaming from his head.

Here are pictures of Barack Obama sweating his Presidential socks off....