President Barack Obama makes an appearance as First Lady Michelle Obama hosts the first ever "Kids State Dinner," at the White House in Washington, D.C., U.S., on August 20, 2012. The First Lady invited 54 kids, ages 8-12 representing all U.S. states, three territories and the District of Columbia, to a luncheon featuring a selection of healthy recipes from the Healthy Lunchtime Challenge.The Challenge was created in support of First Lady Michelle Obama's Let's Move! initiative, which aims to help solve the problem of childhood obesity within a generation. UPI/Pete Marovich/Pool