Millie Alcock wears Paul Smith outfit on ‘The Tonight Show’

Millie Alcock favored Paul Smith’s style while appearing on ‘The Tonight Show Starring Jimmy Fallon’ in New York City on Tuesday night as part of the latest leg of her ‘Supergirl’ promotional tour.

The “House of the Dragon” alum debuted a look from the designer’s Fall 2026 women’s collection, which blends proportional play and menswear inspiration. Cast in classic tones of black and white, the suit look included distinct pieces from the fall curation.

Alcock’s look included an ‘A Suite to Travel In’ unlined black double-breasted wool blazer, a tailored fit white cotton ‘Signature Stripe’ cuff shirt, a black polka dot tie and ‘A Suite to Travel In’ black wool twill pleated trousers.

As part of the brand’s relaunch for 2026, Smith recently partnered with the Sunset Beach Hotel in Shelter Island, New York, to launch his eponymous brand’s store in New York’s Hamptons for a two-week stay. The period of stay is until Monday.

Paying homage to the British fashion designer as the latest “Supergirl” look, Alcock’s look prioritized a certain edge in her promotional tour outfits. Working with stylist Felicity Kaye, Alcock brought a youthful vibrancy to the press tour, wearing pieces from notable designers and labels including Joyce Bao and Jason Wu.

On Monday night, Alcock selected looks from Balenciaga’s spring 2026 ready-to-wear collection, designed by creative director Pierpaolo Piccioli, as part of his first presentation to the Spanish luxury fashion house. This look embodies a dark punk sensibility with details like a monochrome black color scheme, leather-like gloves, and a strapless structured bodice.

“Supergirl” follows Alcock’s Kara Zor-El, aka Supergirl, as she teams up with an unlikely ally to seek justice when the people she loves most are threatened by an adversary. The film will be released in theaters on Friday.