Once a year, the elite of the entertainment and political worlds rub elbows at the White House Correspondents Dinner. Not everyone is pleased about the celebrity-driven nature of the party, which is meant to honor the press corps that covers White House happenings. The New York Times sits it out, and Tom Brokaw famously said, "Look, I think George Clooney is a great guy. I'd like to meet Charlize Theron. But I don't think the big press event in Washington should be that kind of glittering event where the whole talk is about Cristal Champagne, taking over the Italian embassy, who had the best party, [and] who got to meet the most people." However you feel about the star-studded event, sometimes the guest list can leave you scratching your head. A few actors who play DC insiders on TV, say Kerry Washington or Kevin Spacey, don't ever seem out of place, but we don't typically expect to see reality stars or boy-banders mingling with our elected officials. While this year's list seems pretty respectable, let's rank the most unexpected personalities to walk the carpet.