President Barack Obama and first lady Michelle Obama hosted Canadian Prime Minister Justin Trudeau and his wife Sophie Grgoire-Trudeau for a state dinner at the White House on Thursday night.

It was the first time a U.S. president has hosted Canada's prime minister at a state dinner since 1997. There was poutine ! There was Canadian whisky ! There was butterscotch ice cream! And there was FLOTUS, in a stunning Jason Wu gown.