Emma Willis has shown off her new brunette hair at The Voice UK photocall ahead of the final.The 44 year old looked incredible as she posed in an all-black outfit made up of a sheer polka-dotted top, under which she wore a black bralette.The TV star showed off her trim figure in high-waisted black trousers, finishing off the look with black heels. Emma went without accessories and taking centre stage was her new hair do, having dyed her blonde locks a dark brunette colour.