When celebrities get invited to the White House Correspondents' Dinner, they generally keep it classy -- i.e., not too much cleavage. Muted makeup. Long hemlines. Sleeves.
For the occasion, the infamously edgy Katy Perry left her American flag bustier and cat ears at home and went with a demure strapless Giambattista Valli gown with branch detailing at the waist. Her ebony hair was side parted in cascading waves. Her arms looked Michelle-Obama caliber AMAZING. (Take that, John Mayer.)
This playing-by-the-fashion-rules vibe made her almost unrecognizable, in fact. Has Katy ever met an event she didn't try to upend in some cheeky way? This is the same girl who made blue hair chic and who can pull off a bra made of film canisters.
But look closely at a head-to-toe photo like this one of Katy Perry at the White House and you'll see that her inner rebel was in fact in attendance.