London (CNN) -- It could be the undeniable pressures of high office or simply a sense of immense power that makes some world leaders vulnerable to committing public acts of folly.
The latest to join this exclusive club is Russian President Dmitry Medvedev, who can be seen swiveling his hips to a 1990s pop tune on a video clip posted on a social media website on Tuesday.
The Russian leader was filmed at a university reunion dancing to American Boy, a song by the Russian female group Kombinatsiya.
According to Agence-France Presse, Medvedev confirmed the video is real: "We're rocking out last year at a reunion with my (university) class," Medvedev said in his Twitter blog.
While Medvedev's moves on the dance floor might seem somewhat embarrassing, it's not the first time world leaders have been seen doing silly and sometimes downright clownish things in public.
Vladimir Putin, December 2010
Russia's former president and current prime minister Vladimir Putin has been filmed riding bare-chested on a horse and throwing opponents around during judo practice, some say in a bid to boost his action-man credentials, but perhaps his most toe-curling public appearance was in December when he took to the stage at a charity concert in St Petersburg and sang Louis Armstrong's Blueberry Hill.
Putin's performance was watched by actors Kevin Costner, Gérard Depardieu and Sharon Stone.
George W. Bush, November 2005
During a short and ill-tempered press conference in Beijing, Bush was asked by one of the White House press journalists, "Respectfully sir... in your statement this morning with President Hu you seemed a little off your game, you seemed to hurry through your statement. There was a lack of enthusiasm. Was something bothering you?"
Bush replied: "Ever heard of jet lag?" Immediately after answering he turned and tried to open two large doors, pulling on both handles unsuccessfully before turning back to face the press.
"I was trying to escape," he said.
An aide guided him to the correct exit and on to the Great Hall of the People.
Vaclav Klaus, April 2011
The Czech Republic president was filmed sneaking a ceremonial pen into his jacket pocket while on a state visit to Chile.
While Chilean President Sebastian Pinera is talking during the press conference, Klaus is seen admiring the jewel-encrusted pen in his right hand before moving it under the table, switching hands and then deftly placing it in his jacket pocket.
Klaus then button-holes his jacket, seems to chuckle and then continues with the press conference.
Chilean officials say Klaus had every right to take the pen as it was always intended to be a gift.
Boris Yeltsin, 1994
During a trip to Berlin, the former president of Russia snatches a baton from the conductor of a military orchestra and then energetically conducts, swaying from side to side.
The somewhat shocked conductor turns and chats for several seconds with then German Chancellor Helmut Kohl before Yeltsin finally hands the baton back.
Yeltsin, who became the first democratically elected president of Russia in 1991, wrote in his memoir that he was drunk when he grabbed the baton.
Silvio Berlusconi, September 2009
Not content with countless gaffes at home, the Italian prime minister committed one abroad while at a G20 summit in Pittsburgh, U.S..
After shaking hands with President Barack Obama, Berlusconi holds out both arms hoping, it appears, to hug the First Lady.
Michelle Obama however had other ideas and extends a right hand for a formal handshake, with Berlusconi showing some surprise at the rebuff.
Paul Keating, 1992
The Australian premier momentarily placed his hand on Queen Elizabeth's back while the British monarch was in the capital's Parliament building.
The public faux pas went against royal protocol and Keating was dubbed the "Lizard of Oz" by many tabloid newspapers.