This live broadcast has now ended.
Watch live footage from the Scottish town of Tweedbank where the Queen - who today becomes Britain's longest-reigning monarch - is expected to speak:
Could overseeing the development of the Commonwealth be the Queen's greatest international success?
As Queen Elizabeth II becomes the country's longest reigning monarch, ITV News looks back at her remarkable rule.
Fashion and portrait photographer David Bailey said the Queen has the most recognisable face in the world and a "twinkle in her eye".