Michelle Obama and Samantha Cameron State Dinner

The stars are out in Washington! Tonight the Obamas welcomed UK Prime Minister David Cameron and his wife, Samantha, on the North Portico of the White House for a state dinner. The American and British first ladies looked colored coordinated, although each woman is a fashion trendsetter in her own right. Barack and Michelle Obama are currently hosting a three-day official visit, and even though the queen, not Cameron, is the country's head of state, the president is pulling out all the stops for a state dinner tonight.

Grammy winner John Legend will perform, and it looks like he'll have his swimsuit model fiancée, Chrissy Teigen, by his side. Chrissy tweeted earlier today: "In DC! So we meet again, Barack." Other VIPs include Hugh Bonneville and Elizabeth Lee McGovern, who play the Earl and Countess of Grantham on Downton Abbey. I just can't help but picture them attending the dinner in character as the early 20th century aristocrats. Chevy Chase, golfer Rory McIlroy, Anna Wintour, and George Clooney are also reportedly on the guest list. See photos of the Obamas welcoming the guests of honor, the Camerons, as well as other VIP guest arrivals now.