The Wedding Planner: A party in Trafalgar Square (VIDEO)

(CBS) CBS News royals contributor Victoria Arbiter, reporting from London, will be giving CBSNews.com readers daily updates on plans for the April 29 royal wedding.

London mayor Boris Johnson says he wants Friday to see the biggest street party the country has ever experienced. Trafalgar Square is expecting 20,000 people. What will happen when revelers drinking Pimm's and champagne make for the water fountains?

Pictures: London gets ready
Timeline: Westminster Abbey
Special section: The royal wedding

A giant screen is being mounted at the base of Nelson's Column. The finishing touches are going on throughout the city for what promises to be an enormous celebration.

Until next time, royalphiles, keep calm and carry on.

Read more by the Wedding Planner:

Excitement at Westminster Abbey
Kate's long walk down the aisle
The Tower of London

Keep up with Victoria Arbiter on Twitter.