Will there be some trash-talking between the U.S. president and Prince Harry when the Invictus Games are held in Orlando next month? If Twitter on Friday morning was any indication, you can bet on it.

U.S. President Barack Obama and First Lady Michelle Obama traded some good-natured barbs with the young royal over social media in the lead-up to the Invictus Games, a five-day sporting event that will be held in Florida in early May.

Even Queen Elizabeth got in on the action.

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It started with a nine-second video posted online Friday, featuring the Obamas, arms crossed, issuing a warning to Prince Harry.

“Hey Prince Harry, remember when you told us to bring it at the Invictus Games?” says Michelle Obama, before the president chimes in: “Careful what you wish for.”

Prince Harry himself appeared to respond in a tweet from Kensington Palace’s official Twitter account, saying the Obamas “can dish it out, but can you take it?”

It may have appeared that the Obamas had the upper hand, until Harry came back with the ultimate response: a video featuring his grandmother, the Queen.

“Unfortunately for you @FLOTUS and @POTUS I wasn’t alone when you sent me that video,” Prince Harry tweeted.

Prince Harry has been a champion of the Invictus Games, which is a competition for wounded, sick or injured service personnel and veterans.

The third edition of the sporting event begins May 8 in Orlando.