Lupita Nyong'o (Photo: Alexi Lubomirski for Lancôme.)

Lupita Nyong’o (Photo: Alexi Lubomirski for Lancôme.)

*Best supporting actress winner Lupita Nyong’o joins the ranks of Kate Winslet and Julia Roberts as an ambassador for the French beauty house Lancome.

Ads featuring the “12 Years a Slave” star will begin poppingup in September.

“I am truly honored to join the Maison Lancôme, a brand with such a prestigious history that I have always loved. I am particularly proud to represent its unique vision for women and the idea that beauty should not be dictated, but should instead be an expression of a woman’s freedom to be herself,” Nyong’o said in a statement.

Throughout awards season, Nyong’o dazzled fashion watchers with her impeccable fashion sense, which ranged from Chanel to Gucci to that red Ralph Lauren cape dress.

“I had to give a speech about beauty right before the Oscars,” she said in WWD, “and for me, beauty is a compassion for yourself and those around you. And I think that in focusing on that, the light inside illuminates the beauty outside. The idea that Lancôme now has a few actor ambassadors is significant because actors are not just faces, they are spirits that people enjoy and relate to more than in an aesthetic way. We have the privilege of standing for something other than just looks.”

And she’ll make her first post-Oscars appearance back in Hollywood at the April 12 GLAAD Media Awards, reports E!