Information for Barnum at Queen's Theatre Hornchurch, Hornchurch (Musical). This exhilarating Broadway musical follows the irrepressible imagination and dreams of Phineas T Barnum, America's Greatest Showman. The story of his life and his marriage to Chairy reveals a couple who looked at the world from opposite sides of the spectrum, and also reveals that she was the practical one who made his dreams come true. We follow the legendary showman's life as he lit up the world with the colour, warmth and excitement of his imagination and finally teamed up with J A Bailey to create Barnum and Bailey's Circus - the Greatest Show on Earth.