But in 2017, things are taking a slightly more political turn.
It all started with Ruth Negga, who turned heads on the Oscars red carpet less for her dress (but what a spectacular dress it is), but more for her bright blue ribbon. The Loving star turned up rocking an ACLU pin, which represents the work of the American Civil Liberties Union—the organization most recently made headlines for its advocacy against the immigration ban.
Word first spread via Negga's stylist, Karla Welch, who took to Instagram to share a sneak peek of her Valentino dress, and the accessory she's "most proud of." She was joined by Lin-Manuel Miranda, who bore the blue ribbon alongside his date for the night: His mother. Barry Jenkins, director of Moonlight and one of tonight's big nominees, donned a ribbon as well, as did model Karlie Kloss.
"Any money you have to spare, please donate to the ACLU," she said. "It's a vital organization that relies entirely on our support."
Keep an eye out for more celebs rocking the trend throughout the evening.