Thousands of people are expected to line the streets of central London today to watch floats, carriages, performers - and Jessica Ennis - in the Lord Mayor's Show.
The annual parade marks the inauguration of the 685th Lord Mayor of the City of London, Alderman Roger Gifford, who will be carried through the capital in a golden coach.
Joining him will be Olympic gold medallist Ennis who will have the pleasure of using a Jaguar F-Type sports car.
The car will take the athlete along the three-and-a-half mile route, which passes around Bank and Aldwych.
This year's show will showcase the talents of 6,500 people, 18 vintage cars, a tank and a steamroller among others.