President Barack Obama throws an Alice in Wonderland Halloween Party at the White House in 2009
Bill Murray says hello to President Barack Obama and first lady Michelle Obama before an NCAA basketball game between Oregon State and Towson.
Bono, who referred to President Obama as an "extraordinary man" after he was reelected, met with the POTUS back in 2010 following a trip to Africa to discuss ways to make foreign aid more effective.
Bono visited former president George W. Bush in the White House in 2005, had lunch with him in the Oval Office, and discussed world issues like debt relief, AID, malaria and world trade.
Former President John F. Kennedy chatting with Frank Sinatra at the Inaugural Ball in Washington, D.C. back in 1961.
David Bowie, who has been known to hang out with President Bill Clinton from time to time, performed at Chelsea Clinton's wedding in 2010.
Paul McCartney and Oprah Winfrey joined Obama to be honored at the 33rd annual Kennedy Center Honors.
in 1970, rock star Elvis Presley was greeted at the White House by President Richard M. Nixon to offer his services in the government's war on drugs.
Bruce Springsteen performed before President Obama spoke at a campaign rally event in Madison, Wisconsin one day before Election Day in 2012.
As part of the White House Science Fair, Obama taped a segment of MythBusters, covering the Archimedes Solar Ray myth.
President George W. Bush and Mrs. Laura Bush stand with the Kennedy Center honorees Smokey Robinson, Andrew Lloyd Webber, Dolly Parton, Steven Spielberg and Zubin Mehta in the Blue Room of the White House during a reception in 2006.
The comedian in chief shares jibes with the talk show host.
Barack Obama honors Al Pacino with a National Medal of Arts award in the East Room of the White House.
The former president makes nice with the Gueen of Hip Hop Soul and Jason Bourne.
The comander in chief does his daytime duty with the ladies of The View.
Obama poses with Nike Bordeaux Air Jordans and Spike Lee.
Just a couple of basketball fans debating whether it's best to slip the screen on the pick-and-roll.
Celebs meet and greet with the prez.