Alexander Wang thrilled his guests with futuristic outfits that glow in the dark Saturday as he reaffirmed his flair for the theatrical at New York fashion week.

As if on cue, menacing dark clouds swirled over the spartan Pier 94 warehouse on the Hudson River just around the moment Wang's late-afternoon show began inside, but you didn't have to be outdoors to pick up a sense of drama.

Cutout stripes featured prominently in Wang's latest creations, one of which was modeled by Liberty Ross, spurned wife of Rupert Sanders, the director who notoriously canoodled this summer with "Twilight" star Kristen Stewart.

Ross sported a white hoodie with pencil skirt and strappy white high heels.

Models with hair pulled severely back and parted down the middle with an alien-like stripe stepped out in monochrome looks that included tailored shirt dresses and an generously sized biker jacket.

For the surprise finale, eight blond models posed in formation on the runway. Out went the lights, and on came the dresses, literally, glowing florescently in the darkness.

"I loved the futuristic vibe, the color palette ... and I loved the volume of the clothes," editorial hair stylist Omar Lopez told AFP, dodging raindrops from those big dark clouds on his way out of the show.

"It was strong; it was urban," added Rajni Jacques, fashion features editor of Glamour magazine.

Wang, 28, who this year is opening more than a dozen boutiques in East Asia in a bold expansion drive, is one of the biggest attractions of New York fashion week, which wraps up Thursday.

His A-list guests Saturday included Justin Theroux, fiance of actress Jennifer Aniston, and Yo-Landi Vi$$er of the South African hip-hop crew Die Antwoord, who turned up in a white netted mask and black hoodie.