Watch: Queen's response to dare from Obamas is simply hilarious!

New Delhi: Well, you simply don't mess with the royals even if you are President of the United States. Recently, Barack Obama and First Lady Michelle Obama challenged Britain`s Prince Harry in a viral video.

Showcasing the Obamas, video aims to promote the Invictus Games, an international sports event for wounded, disabled and sick military personnel and veterans.

In no time, Prince Harry also took to the social media and tweeted, “Unfortunately for you @FLOTUS and @POTUS I wasn't alone when you sent me that video.”

Along with this message, the Prince also posted a video where he is sitting next to his grandmother Queen Elizabeth. “"Really, please!" she responds after watching the clip of US' first couple. Immediately, Prince Harry turns to the camera and says 'Boom'.

Ooh! Now, that was a burn.

Unfortunately for you @FLOTUS and @POTUS I wasn't alone when you sent me that video  - H.https://t.co/sjfSQvkzb6 — Kensington Palace (@KensingtonRoyal) April 29, 2016