Wearing a skimpy, body-hugging dress with a plunging neckline, singer-actress Vivian Chow Wai-man proved that she's got what it takes to look great in her 40s. Chow was named ambassador for the fifth consecutive year of slimming and beauty salon chain Elyze at its Times Square salon last Thursday. She said she hadn't worn such a sexy dress in years and only did so because she was looking fitter than ever. She shared tips on how she had kept her hourglass figure for the past five years. The "magical" routine included healthy eating and detoxes. Asked whether her husband, author and radio show host Joe Nieh Chun, minded her showing off her curves in public, Chow said he had been very supportive. "He didn't complain at all. He said I looked amazing," Chow said. "He knows me so well and respects my every decision."