Twitter has created a crown emoji to celebrate The Queen's 90th birthday, with users tweeting #Queenat90 or #happybirthdayyourmajesty to trigger the emoji this weekend.

Twitter's Managing Director, Dara Nasr, commented 'The crown emoji represents The Queen's lifelong commitment and reflects people's love and admiration for her on this special birthday. We can't wait for users to share their messages and join the conversation on Twitter during the celebrations this weekend'.