Alber Elbaz has dressed a staggering swath of celebrities since he took the helm at Lanvin in 2001. But did you remember his role in Beyoncé’s pregnancy-reveal moment? Or the tempest in a teapot that ensued when Michelle Obama wore his $540 sneakers to speak at a food bank? When Elbaz — who’s confirmed to be leaving his post at the French fashion house — wasn’t dressing headline-makers, he was focusing on making a wide range of women — of all ages and sizes — look beautiful and confident in his designs. His mutual-admiration society over the years has included Meryl Streep, Tilda Swinton, Natalie Portman, and Emma Stone. Click through the slideshow to see some of his biggest red-carpet hits.