Where did she find such a shade? How can you get your hands on the exact same one?
Kate has makeup artist extraordinaire Charlotte Tilbury to thank for last night's look, who painted the supermodel's pout with So Marilyn from her own K.I.S.S.I.N.G lipstick collection.
Need it in your life? You can buy the lippy online right now, £23, charlottetilbury.com.
Tweet us if you just found your new red @handbagcom!
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