It’s not a fashion statement. Hollywood stars wore black to the Golden Globes as part of a movement called Time’s Up.

Time’s Up aims to fight sexual harassment, assault and inequality for women in all kinds of workplaces. It has raised over $15 million for a legal defense fund to help people who have experienced workplace harassment.

The movement encouraged Golden Globes attendees to wear black as a show of unity and power.

Viola Davis, Reese Witherspoon, Nicole Kidman, Alison Brie, Kate Hudson, Emma Stone, Emma Watson, Rita Moreno, Michelle Williams and Angelina Jolie were among the stars in black on the red.

The black and white Time’s Up pin was the night’s accessory du jour. Commissioned by Reese Witherspoon and designed by stylist Arianne Philips, the pin was created by Los Angeles jewelry designer Michael Schmidt.

Oprah Winfrey was the recipient of the Golden Globes' annual Cecil B. DeMille award for lifetime achievement.

Her fiery speech drew strong reactions worldwide.

“So I want all the girls watching here, now, to know that a new day is on the horizon! And when that new day finally dawns, it will be because of a lot of magnificent women, many of whom are right here in this room tonight, and some pretty phenomenal men, fighting hard to make sure that they become the leaders who take us to the time when nobody ever has to say 'Me too' again,” said Winfrey in her speech.