In between meetings, protests and a visit to a local school, Donald Trump, Chinese President Xi Jinping and their wives were entertained by Trump’s grandchildren at Mar-a-Lago this week.

In a tweet Friday night, Ivanka Trump said she was proud of her children, Arabella and Joseph, for performing for the presidents during their visit to the Palm Beach residence.

In the video posted with the tweet, Ivanka Trump tells the Chinese president and his wife “We wanted to make you feel at home.”

Trump, Xi Jinping and others listened as Arabella sang for the room.

It’s unclear from the tweet when the short performance took place.