Unsurprisingly, it was utter chaos as fashion fans queued to glimpse the supe and shop the collection.
Our spies tell us that the red poppy dress and the panther claw dress from Kate's Iconic collection, and the black embroidered kimono dress and the crochet lace dress from her autumn/winter 2010 collection were some of the evening's best sellers.
We can't wait to find out who's in line to replace the inimitable Ms Moss.
Love Kate's look? Visit Topshop.com for a chance to win the one-off outfit that she wore last night.
In related news, see Kate's final collection here.