Prime Minister Justin Trudeau had a request of all the guests at his state dinner at the White House on Thursday.
Stop teasing Justin Bieber.
The prime minister was addressing a crowd in the East Room of the White House when he came to the topic of international trade.
One of Canada's key exports, he said, is the hitmaker behind songs such as "Baby" and "Where Are U Now."
Here are his remarks about Justin Bieber:
"Over $2.4 billion worth of goods and services cross the border every day -- evidence of one of the largest and most mutually beneficial trading relationships in the world. And one of our most popular exports to the United States, and I need you to stop teasing him, has been another Justin. Now, no, no, that kid has had a great year. And of course, leave it to a Canadian to reach international fame with a song called 'Sorry.'"
The quip drew both laughter and applause.
U.S. President Barack Obama honoured Trudeau with a state dinner, marking the first time a Canadian leader has been invited to one in 19 years.
The last one was former prime minister Jean Chretien, who was invited to the White House by ex-U.S. president Bill Clinton, in 1997.
Prominent guests at Trudeau's state dinner included Canadian actors Sandra Oh, Mike Myers, and Michael J. Fox, as well as "Saturday Night Live" creator Lorne Michaels.
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Prime Minister Justin Trudeau addresses a packed room for Canada 2020's reception event at the Renwick Gallery in Washington, D.C. on March 9, 2016. Trudeau is in the U.S. capital for a historic state visit with President Barack Obama. (Photo: © Hannah Thomson for Canada 2020)
Trudeau and Grammy-winning, Oscar-nominated The Weeknd share a laugh at Canada 2020's reception event at the Renwick Gallery. (Photo: © Hannah Thomson for Canada 2020)
Two Mounties in full red serge stand guard outside Canada 2020's event with cabinet ministers Stéphane Dion, Hunter Tootoo, Catherine McKenna, and Harjit Sajjan. (Photo: © Hannah Thomson for Canada 2020)
(Photo: © Hannah Thomson for Canada 2020)
The prime minister, right, and Sophie Gregoire-Trudeau, left, pose with The Weeknd. (Photo: © Hannah Thomson for Canada 2020)
Ambassador Susan Rice, Senator Tim Kaine (D-VA) and chief of staff to the First Lady Tina Tchen mingle at the Canada 2020 reception. (Photo: © Hannah Thomson for Canada 2020)
The prime minister and his wife meet U.S. Senators Al Franken and Debbie Stabenow. (Photo: © Hannah Thomson for Canada 2020)
Prime Minister Justin Trudeau and Sophie Gregoire-Trudeau pose outside of Canada 2020's reception at the Renwick Gallery in Washington. (Photo: © Hannah Thomson for Canada 2020)