Victoria Beckham's been tweeting her excitement at being back in Britain for the Royal Wedding.
"London looks beautiful!!!we are so proud to be British! X VB x"
Victoria has been tight-lipped about her outfit, but is likely to wear one of her designs, possibly in a bigger size to make room for her baby bump.
Designer Anna Valentine will be dressing Camilla, Duchess of Corwall . The Duchess wore Valentine's design when she married Prince Charles.
Camilla's daughter in law, Sarah Parker Bowles, will be dressed by London designer Osman, whilst Prince Harry's on-and-off girlfriend Chelsy Davy will be wearing Alberta Ferretti.
Jimmy Choo's CEO Tamara Mellon will probably wear one of her shoe designs, whilst Vogue UK editor Alexandra Shulman has opted for Christopher Kane.