Black Christian Siriano gown of Billy Porter
American actor Billy Porter wore a tuxedo dress in black velvet designed by Christian Siriano on the red carpet of the 91st Academy Awards on February 24, 2019. At the time, Porter had recently come into public view for his breakout role in the FX television series Pose and had been receiving attention for his boundary-pushing red carpet attire during the 2018–19 film awards season.
Source: Wikipedia — Black Christian Siriano gown of Billy Porter (CC BY-SA 4.0)