Oh - and legend - the funny answer's already been done, but on a serious note, according to the houses of Armani and Versace, a black dress makes every woman look beautiful, because its simple and plain colour can be enhanced by any other colour of accessory. Black also has a slimming effect, which nearly all women like, even if they're happy with their shape, and I don't think it matters whether the woman has blonde hair or not. You probably just notice the blondes in Tenerife because a lot of women lighten their hair, particularly when on holiday.