It's not Marc, it's not Miu Miu, in fact it's nothing we really care about which is painful since we really care about Leighton.
She's the new face of Reebok.
And not the way Agyness was the new face of Reebok, not just a passerby at a party who happens to be wearing Reeboks, there's proof this time.
She shot the ads in New York on Saturday morning, with short brown hair and an outfit that would make Blair Waldorf cringe and Jenny Humphrey jump for joy.
The funny thing is, no one on Gossip Girl actually wears sneakers.