Five years ago, Hong Kong-born designer Robert Wun was working from his kitchen – now he dresses some of the world’s best-known entertainers. In a short time, the 34-year-old has rocketed from unknown to one of the most sought-after fashion names, designing for everyone from Lady Gaga to rapper Cardi B, who sat front row at his latest show on July 8 in Paris, France. “I have some days off, sometimes,” he says with a smile, while admitting to being “quite exhausted mentally and physically because...