See more photos of Michelle's gown
The arrival of the Chinese President Hu Jintao in Washington signalled the start of an important round of negotiations between China and the US.
But all eyes were on Michelle Obama as the formalities got underway.
America's First Lady looked stunning in a red petal print silk gown by Alexander McQueen as she posed for photos before the White House state dinner.
Cementing her fashion icon status, Michelle combined glamour with her own daring dress sense.
Photo: © Rex