Known for her more outlandish outfits, this demure look - showcasing an apricot and black Louis Vuitton number - is such a huge departure for Katy, making it all the more shocking.
Scroll through our gallery below for Katy the way we're used to seeing her.
More:Have You Seen?
Suggested For You
SUBSCRIBE AND FOLLOW
Get top stories and blog posts emailed to me each day. Newsletters may offer personalized content or advertisements.Learn more