In some ways, traditional dress codes bring a certain magical air to an event - we can't wait to see the frocks at the Oscars or the glittering gowns at the Met Gala. And yet, in many ways, the confines of tradition have been known to hold women back, keeping them within the boundaries dictated by patriarchal ideals.
Increasingly, celebrities are throwing caution to the wind and abandoning the rules entirely, or making subtle but key changes in their outfits that speak volumes.
Last year, when women were kicked off the red carpet at the Cannes Film Festival for wearing flat shoes, the restrictive and outdated nature of black tie dress codes was highlighted even further. This year, Susan Sarandon and Julia Roberts decided to make statements that they wouldn't be told what shoes they could and could not wear.
Here, we take a look at some of the women who have made their own rules, and adapted red carpet dressing to suit their own style.