Watch | Canada’s Justin Trudeau challenges royals, Obamas ahead of Invictus games

Canadian Prime Minster Justin Trudeau challenged the British royals and the Obamas ahead of upcoming Invictus games, posting a video doing push-ups to tout the success of the Canadian team. The invictus games are a paralympic sporting event for injured servicemen and women.

Britain's Queen Elizabeth recently appeared with U.S. President Barack Obama and his wife Michelle in a light-hearted video to promote the Invictus games for injured British, American and allied military personnel.

Prince Harry, the queen's grandson, launched the first of the Invictus games in London in 2014 and the second will take place in Orlando, Florida between May 8 and May 12, featuring athletics, cycling, swimming, volleyball and other sports.