Joe Biden made one of his final blunders on the international stage last night after wandering off behind a palm tree and missing a key photo-op with world leaders. The 81-year-old President, who will further extend the record of the oldest person to hold the office when he turns 82 tomorrow,

Joe Biden headed for a photo with fellow G20 leaders in Rio de Janeiro at his final summit as US president on Monday -- only to find they had already taken the picture without him.

The outgoing U.S. president missed a photo with Group of 20 leaders on Monday in Brazil after summit organizers proceeded without him.  Biden and Canadian Prime Minister Justin Trudeau arrived at the waterside location just as their fellow world leaders were dispersing.