On her invitation to the annual Met Gala, US Vogue supremo Anna Wintour indicated that the dress code for men was “white tie”. Eschewing the de rigueur white bow tie and black tails, rapper Frank Ocean rocked up in a white dinner jacket. So did Givenchy couturier Riccardo Tisci and Ed “Saving Private Ryan” Burns. All looked absolutely faultless. What’s wrong with a little side–stepping of the dress code between friends ("especially when they may have shelled out $25,000 for the privilege of attending")? Except that formal etiquette also requires that a white dinner jacket be only worn in the northern hemisphere from the last Monday in May to the first Monday in September ("we kid you not"). In the southern hemisphere, the white DJ is OK all year round. So yes: white DJs all round, all year round. Frank, Riccardo and Ed may have started something, and a white DJ could now be as acceptable as the ones immortalised by the likes of Humphrey Bogart in Casablanca, Sean Connery in the James Bond franchise, and Don Draper in Mad Men. Obviously, we would recommend giving the white DJ the full works, so that it gets to the end of the evening with all sorts of stains — red wine, lipstick galore, bodily fluids, you name it. A far more revelatory garment than the sober black tux.