Porter, who has made bold fashion statements at nearly every show this award season, stood tall and proud in a custom velvet tuxedo gown created by Christian Siriano. There was a bow tie, ruffle-cuff white shirt and classic tuxedo jacket on top paired with a strapless full-skirted gown in inky black.
When you come to the Oscars, you must dress up. Thanks @CSiriano for creating this custom couture masterpiece. @OscarHeymanBros you have outdone yourselves with your iconic jewels. Style by @sammyratelle Grooming by Anna Bernabe. @TheAcademy #AcademyAwards2019 #oscars #oscars2019 pic.twitter.com/IpTG2OK20x— Billy Porter (@theebillyporter) February 24, 2019
Porter was also decked out in jewels from Oscar Heyman & Bros. He said he was styled by Sam Ratelle and credited Anna Bernabe for hair and makeup.
Nobody was more excited about Porter's bombshell ensemble than Siriano himself, who tweeted the look as soon as Porter hit the red carpet Sunday afternoon.
PHOTOS: Oscars 2019 carpet fashion; stars arrive at 91st Academy Awards
The Associated Press contributed to this report.