The Olympic ice skater will be the face of MAC Cosmetics' Glitter and Ice holiday campaign later this year.
Weir, who became famous during last year's Winter Games, also because of his outrageous outfits like his fur-trimmed Elise Øverland number, joins MAC's flamboyant roster of spokesmodels including Lady Gaga, Dita von Teese, and Nicki Minaj.
A male athlete might be a surprising choice to many, but the singer Elton John - known, just like Weir, to use the brand for his performances - has posed for its campaigns in the past.
Weir is busy building his style empire, also working on new reality TV series Be Good Johnny Weir in the US.
MAC's choice reflects a current trend of gender-transcending campaigns in fashion and beauty.