"I went black and have never gone back."
The 17-year-old Chicago rapper didn't play nice, but Perry did.
Katy Perry thinks she's on Game of Thrones, Beyoncé and Madonna fight over first-name supremacy, Anna Wintour presides, and more.
Sarah Jessica Parker, Anne Hathaway, Allison Williams, and other women who looked both awesome and on-theme (somehow).
It was adorned with a halo of purple flowers.
Beyoncé, Rooney Mara, and of course, Kimyembryo.
While promoting her new fragrance, fittingly called "Killer Queen."
It looks rather regal.
Plus pictures of Carey Mulligan, Miuccia Prada, and others from last night's shindig.
Including Claire Danes, Katy Perry, Sofia Vergara and Anna Wintour.
Katy Perry and her interpretation of Smurfette both grew up.
Fake nipples from Beyoncé, Rebel Wilson, and Gaultier.
What are they saying in this picture?
So many neons, so many crop tops.
Splitsville, kids. Splits. Ville.
The bakery is now taking preorders.