Claire Danes Is Real-Life Cinderella at Met Gala in Glow-in-the-Dark Gown (Photos)

Before the event, Zac Posen teased the real-life Cinderella dress on social media

Claire Danes glowed at the 2016 Met Gala – literally – while wearing a light-up Zac Posen dress.

The designer teased the real-life Cinderella dress on Instagram ahead of the annual fashion fundraiser, captioning, “Celestial grandeur. Illuminating ballgown. Guess who? #metgala #zacposen #glamour.”

The “Homeland” actress shined on the red carpet of Anna Wintour’s annual event in her fairytale dress. The dress glowed in the dark, which Danes matched with a simple up-do and classic red lips.

Fans went wild for the dress, with many tweeting that Danes had “won” the gala.

This year’s Met Gala, formally known as Costume Institute Gala or the Met Ball, is an annual fundraising gala for the benefit of the Metropolitan Museum of Art’s Costume Institute in New York City. This year’s theme was titled “Manus x Machina: Fashion in an Age of Technology.”

See picture of the stunning dress below.

Celestial grandeur. Illuminating ballgown. Guess who? #metgala #zacposen #glamour

A photo posted by @zacposen on

#clairedanes #zacposen #metgala

A photo posted by @zacposen on

Guess who? Getting ready for #MetGala2016 #manusxmachina #metball16

A photo posted by @zacposen on