After first appearing in Olay ads in the mid-1980s, Twiggy, née Lesley Hornby, is slated to be the face of Olay Definity, an antiaging skincare line. "I am delighted to be fronting the new advertising campaign for Olay Definity. Like many women. I trust Olay to meet my specific skincare needs," she said. I only hope I look as ageless as Twiggy when my big 6-0 drops by.