The New York Times reports that the first daughter sat between Trudeau and Nikki Haley, the Trump administration's UN ambassador. They saw the musical Come From Away, which is about a group of small-town Canadians who helped in the post-9/11 rescue effort.
Trudeau, who was joined by his wife Sophie Grégoire Trudeau, gave a surprise address before the start of the show — and, unsurprisingly, got a standing ovation.
"[The cast] worked to pull together such an extraordinary crowd to celebrate this story of friendship during extraordinarily difficult times between individuals between countries," Trudeau said.
He added: "The world gets to see what it is to lean on each other and be there for each other. This story, this amazing show, is very much about that, and it's about friendship as well."
Others in attendance included Canadian Foreign Affairs Minister Chrystia Freeland, former Canadian prime minister Jean Chrétien, and 600 people with the Consulate General of Canada in New York.
In February, Trudeau held a roundtable at the White House with the president and Ivanka Trump during which they announced the creation of a Canada-United States Council for Advancement of Women Entrepreneurs and Business Leaders. They discussed critical issues faced by women in business.