Yesterday Lily Allen was out and about in London showing off her latest hair colour and visiting friends. She matched her new darker hair with a black maxi dress but added shots of colour with bright accessories and white pumps. Lily is rarely seen without her bright coloured Ray Ban wayfarers these days (as spotted on her head at Glastonbury and the supermarket!) and why would she be when they're one of Summer's hottest accessories. See below for a way to copy her style.