It’s comforting to know that the human race is in safe hands.
Shaq and Bill Gates
The President of Belarus and his mini-me
The Dalai Lama
Mark Hamill with Kermit, Ms Piggy and Yoda
Michael D. Higgins, President of Ireland
Tsar Nicholas II of Russia. [c. 1890]
Stanley Kubrick taking a mirror selfie with his daughter, while Jack Nicholson thought it was a photo of him.
Steve Jobs giving IBM the middle finger. 
Charlie Chaplin pulling a face
Prince Harry photobombing a group of athletes
Director Steven Spielberg giving E.T. a bath
Albert Einstein rocking fluffy slippers. [c. 1950]
King Victor Emmanuel III of Italy, who was a lot shorter than his wife, stands on a ladder to get to her level.
Joss Whedon showing the Avengers how it’s done.
Alfred Hitchcock serving tea to the MGM Lion. 
John Key, Prime Minister of New Zealand
Steven Spielberg hanging out with Jaws
Tony Blair, Former Prime Minister of the United Kingdom, who seems a bit too fond of himself.
Richard Nixon pretending to levitate. [c. 1959]
Boris Johnson, Mayor of London, enjoying some sports
The Queen of England photobombing a selfie with a smile
King George VI of England on a slide. 
Prince William photobombing athletes
The President of Estonia taking a selfie
The Dalai Lama
Kevin Rudd, Former Prime Minister of Australia
Franklin Roosevelt pulling his cousins hair
President Obama teaches basketball to the Vice Chinese Premier
Ronald Reagan wearing sweatpants on Air Force One.