One of our favourite divas knows just how to take charge of both the stage and the red carpet.
Katy wore not one, not even two, but FOUR outfits last night, each one showcasing her cute personality and strong on-stage presence.
Our favourites are the blue Cinderella-esque gown and the tutu style maroon knee length dress with snake detailing.
Least favourite will have to go to the Braveheart-style costume for her performance, complete with a light up cross – hmm.
We love Katy’s looks, what do you think?