Katy Perry was in London this weekend to perform on BBC’s ‘Let’s Dance for Sports Relief’.

Whilst in town she dined at Nobu Restaurant in Mayfair, London, with her entourage.

She was spotted leaving, with that same blue hairdo, wearing a Cushnie et Ochs Spring 2012 ensemble.

Her bodysuit with the cut-out details on the bodice was teamed with a black flared skirt and Versace Resort 2012 leather high-heeled boots.

The boots are covered in gold grommets and tied up with blue laces – yes, blue laces.

So is the challenge to match at least one item of her look to her hair?

Credit: Style.com & Getty