The congregation is currently gathering in Westminster Abbey and while we haven't yet had a glimpse of the bride's much talked-about outfit, the guests are already providing enough elegance and style to pique our interest.

Full-sized hats are very much in evidence as you'd expect, but many of the younger guests have opted for fascinators and more contemporary-style hats. Two of the most striking so far have included the hugely stylish oval mini hat worn by Victoria Beckham (pictured above left, helping out with her husband's headwear) and the electric blue hat and dress combo worn by Tara Palmer-Thompkinson.

More images and info as we get it!