Testino has shot fashion stories for Vogue, Gucci, and Vanity fair. Celebrity subjects have most famously included Diana, Princess of Whales and her sons. Other subjects have included many actresses such as Kim Basinger, Emma Watson, Cameron Diaz,Gwyneth Paltrow, Julia Roberts, Meg Rayan, and Catherine Zeta-Jones, models such as Tyra Banks , Gisele Bundchen, Elizabeth Hurley, and Kate Moss, performers such as Janet Jackson, Madonna, Kylie Minogue, Kristen Stewrt, Britney Spears, and Lady Gaga, and public figures like Baroness Thatcher. Living in London, he continues to photograph the British Royal Family as well as contributing to the image development of Burberry, Gucci, Zara, Michael Kors, Dolce&Gabbana, Estee Lauder,Versace, and Valentino. Testino is currently represented exclusively by Art Partner. He and fashion stylist Carine Roitfeld are credited for drawing significant attention to the house of Gucci through provocative ad campaigns in the mid-1990s, which, along with Tom Ford's designs, eventually led to the revival of Gucci as a major fashion house. In December 2010, Testino took the engagement photos of Prince William and Kate Middleton.