It’s been, ohh, a good few minutes now since Sienna Miller last treated us all to one of her characteristic crimes of fashion, but here, at the Isle of Wight festival, she does The Fashion Police proud in an outfit that could – and, indeed probably will – be used to illustrate "what not to wear to the festival".

So: denim waistcoat over baggy t-shirt, over baggy long-sleeved t-shirt, over tiny shorts, topped off with a floppy hat and a pair of folded-over ankle boots. Wear this and you, too, can be a "fashion icon", kids, just like Sienna! Or… maybe not.