Katy Perry made headlines at Vogue World: Paris Sunday, stunning in a revealing Noir Kei Ninomiya gown at Place Vendôme. The 39-year-old singer turned heads with a cut-out design featuring geometric prints and billowing tulle embellishments. The harnessed gown, complete with zippered edges, was paired with black leather boots for a bold runway look. Perry's dark brown hair was slicked back, with a focus on a smokey eye makeup. In a TikTok post, Perry shared her nervousness while sipping champagne after the show, jokingly mentioning a request to model from Anna Wintour. The former "American Idol" judge's surprise appearance added a touch of high fashion to the event, showcasing her bold sense of style and confidence on the catwalk.