It was so good that Rihanna later told her, "I almost made you give me that dress on the spot."
What are we going to do when this promo tour ends?
A must-read roundup of our most popular stories of the week. You're welcome.
Tom Cruise, eat your heart out.
Costume designer Sarah Edwards talks Cate Blanchett's Keith Richards-inspired suits, wardrobing Rihanna and recreating fashion's biggest night.
Complete with a host of A-list celebs, plenty of models, a few designers and Anna Wintour herself.
Watch Sandra Bullock lead a dream scheme to rob the Met Gala.