Last night, the Obamas hosted a state dinner for Chinese President Xi Jinping and his wife Peng Liyuan. But surprisingly, the big story of the evening wasn't U.S.-Chinese diplomatic relations, but the stunning gown worn by First Lady Michelle Obama.

First glance at tonight's China State Dinner.

A post shared by Michelle Obama (archived) (@michelleobama44) on

FLOTUS wowed in an elegant black mermaid dress by Vera Wang, an American designer with Chinese heritage. Wang tweeted what an honor it was to dress Michelle for the event.

Sources: TIME