Chelsy Davy arrived at the royal wedding this morning in London wearing a custom-made green Alberta Ferretti dress. It's one of two dresses from the designer she will be wearing today, the other being a dramatic long navy grown for the reception. Chelsy was revealed as Prince Harry's date earlier this week as the two remain close and have been in their on-again off-again relationship for about seven years. Chelsy was spotted out relaxing with friends at dinner before the royal wedding last night, but she was up bright and early today to get ready for the big event. The fashion parade is going strong with the Beckhams arriving at the royal wedding looking impeccable, but of course the main event will be when Kate Middleton arrives and reveals her gown!