Last month Shaquille O'Neal tweeted, "Question, I'm n dc, think if I walk up to the white house, they let me in, I kno the answer, let me kno wht u think, o yea I'm wearin shrts." And several hours later, a disappointed Shaq bemoaned, "The white house wouldn't let me in, whyyyyyyyyyyyyyyyy."
Maybe the President was tied up working on policy or spending time with his family...or maybe he was already hanging out with another celebrity. Obama's White House has been visited by George Clooney, Stevie Wonder, Reese Witherspoon, Tiger Woods and other Hollywood stars.
Over time, many celebs have traveled from the red carpet to the White House, including Elvis, Audrey Hepburn and Barbra Streisand.