To celebrate the launch of Andrea Lieberman’s label A.L.C., a dozen of the power stylist’s closest friends gathered for a luncheon at Barneys in Beverly Hills. “Obviously, I am her number one fan,” said longtime collaborator and client Gwen Stefani, with baby Zuma in tow. Clad in an A.L.C. jacket, Stefani added praise for Lieberman’s [...]

Once upon a time, stylists were the covert agents of the fashion industry. Only those with top-level fashion clearance—designers, editors, photographers, celebrities—knew of their existence. As far as the rest were concerned, the intelligence they passed on about how clothes ought to be worn simply emerged magically out of the zeitgeist. In the past few [...]