So, it wasn't just all stuffy old people wearing fashion-backwards formal attire. Here are some of the rules that were broken by the most adventurous attendees.
Necklines needn't be conservative.
Show off your tattoos.
She obviously took a page from Lena Dunham's book.
Don't just opt for a fancy updo or a curled-under bob.
Instead, this lady chose a hairstyle straight off a 1988 Betsey Johnson runway show.
Push the boundaries of what formal attire actually means.
Hot pink fringe that starts at the waist? It certainly counts as floor-length.