Katy Perry Wore Christian Siriano Spring 2027 RTW at the Lucas Museum of Narrative Art Opening

Katy Perry brought runway-fresh fashion to one of Los Angeles's biggest cultural openings of the year. The "California Girls" and "Roar" singer attended the star-studded opening night gala for the Lucas Museum of Narrative Art on September 19, walking the carpet alongside her boyfriend, former Canadian Prime Minister Justin Trudeau.

Katy wore a structured, one-shoulder gown from Christian Siriano's Spring 2027 collection, a shimmering silver-white piece that had only just debuted on the runway during New York Fashion Week nine days earlier. The dress featured a sharp asymmetrical neckline draping across one shoulder, a fitted, ruched bodice cinched tightly at the waist, and a slim column skirt that fell straight to the floor with a subtle crushed-velvet texture catching the light. The metallic-toned fabric gave the otherwise minimalist silhouette a sculptural, almost liquid-metal finish.

Katy let the dress do the talking, keeping accessories minimal and wearing her dark hair long, straight, and center-parted with classic, understated makeup. Trudeau coordinated in a sleek black suit with a crisp white dress shirt, and the two were photographed exchanging warm smiles and laughs throughout the evening.

The Lucas Museum of Narrative Art, founded by filmmaker George Lucas, is set to officially open to the public on September 22, showcasing narrative art spanning illustration, comics, animation, and film. This marks yet another red carpet outing for Perry and Trudeau, who went public with their relationship in Paris last October and have since made several joint appearances, including at Tribeca earlier this year. Pulling a look straight from the runway just over a week after its debut shows Perry's stylist is clearly keeping close ties with design houses eager to dress her for major moments.