Singer Rihanna's canary yellow cape dress, trimmed with fur the colour of egg yolk and embroidered with flowers, swept behind her in a seemingly endless train as she arrived for the ball at New York's Metropolitan Museum of Art, one of the biggest nights in the fashion year.
Social media lit up with chat about the dress, and the fashion magazine Vogue promptly put it on the front cover of its Met Gala Special Edition, catapulting its Chinese creator Guo Pei into the international spotlight.
Guo, a brand designer turned haute couture stylist already well known in China, says the empress-style gown, one of her most ambitious creations, took some two years to make from its conception in 2008.
"Just designing, choosing the cloth, confirming the colour and getting the material woven in Italy took almost half a year, more or less," Guo said at her studio in north Beijing.