The 29-year-old "Pam & Tommy" actor opted for a neon-pink, long-sleeve shirt, oversized bomber jacket, and slouchy pants with matching sneakers all designed by Valentino, according to Stan's Instagram post on Monday.
While Stan took more risks than many male attendees who typically wore black suits, the bright-pink look didn't appear to make any distinguishable nods to the "gilded glamour, white tie" dress code.
As Insider's Samantha Grindell previously reported, citing Vogue, "gilded glamour" refers to the period of the Gilded Age of New York, between 1870 and 1890, "during which the upper class had a more-is-more approach to fashion, in part because technological developments made it easier to buy more clothes than ever before."