Her promise comes a year after more than 1,000 women in the entertainment industry to initiate Time's Up movement to combat sexual misconduct and increase pay equity across industries.
HFPA President Meher Tatna, Good Place actress D'Arcy Carden and "The Marvelous Mrs. Maisel" actress Marin Hinkle were also spotted wearing the ribbons and wristbands.
Emma Stone talked about the Best Director nominees, she referred them to as 'these four men and Greta Gerwig'.
The dress code black-out follows that of the Golden Globes in January and white roses for the Grammys.
Earlier in the night, Pink also put on an empowering performance of her single 'Wild Hearts Can't Be Broken'.