By Andrea McVeigh

Forget Agyness Deyn and her white blond crop, the hot new look for hair, as style-spotted during Belfast Fashion Week, has been for outrageously coloured barnets - we're talking bright blue, shocking orange and hot pink!

Marc Jacobs is master of the trend - he was seen out and about with a blue crop during New York Fashion Week as early as last autumn, while his models have been sashaying down his catwalks sporting pink tresses. But who's the Queen of colourful hair? It has to be

Dame Vivienne Westwood - pushing 67 and still rocking a dyed orange punk 'do'. Bring back the blue rinse, that staple of 1970s OAP-chic, that's what we say!

Photograph by Jay Haysey