John Legend, Mumford & Sons to play state dinner

In this image released by Hope for Haiti Now, John Legend performs at the "Hope for Haiti Now: A Global Benefit for Earthquake Relief", on Friday, Jan. 22, 2010 in Los Angeles. (AP Photo/Mark Davis/Hope for Haiti Now)

March 14, 2012 1:50:34 PM PDT
There's something special for the Obamas and something special for the Camerons in the entertainment lineup and guest list for Wednesday's state dinner for the British prime minister and his wife.