By Caitlin Petreycik
Updated Jul 18, 2011 @ 2:10 pm
Courtesy of YSL

Natalie Portman's fiance is the star of Yves Saint Laurent's new L'Homme Libre fragrance campaign! The 34-year-old new father to son Aleph, who is a principal dancer with the New York City Ballet, was photographed mid-pirouette for the ad, and he's also set to star in a 30-second commercial airing this fall. This isn't Millepied's first time behind the lens—he posed (and danced!) for Club Monaco last year.

PLUS! See YSL's fall collection in the gallery!