Claire Danes' magnificent Zac Posen dress for the 2016 Met Gala is both breathtaking and theme appropriate!
The Homeland star sported the designer's custom baby blue gown—which gives us a hint of Cinderella vibes—and needed the help of both Posen and her husband Hugh Dancy while going up the museum's famous grand steps.
Posen's gorgeous glow-in-the-dark dress is lined with fiber optics all throughout, highlighting the delicate detailing from the corset to the full skirt and train.
Danes revealed to E! News that she chose to wear Posen's creation to the annual fashion affair because she and the New York-based designer were neighbors in high school and have been longtime friends.
Earlier in the evening, Posen Instagrammed several shots teasing the dress and the celeb wearing the look, writing, "Celestial grandeur. Illuminating ballgown."
Danes and Posen surely ran with the theme of the evening, Manus x Machina—which is focused around fashion in the age of technology.
Don't miss our coverage of the Met Gala on Monday starting at 7 p.m., with a special edition of E! News and live from New York at 7:30 p.m. from 30 Rock. And come back Tuesday, May 3, for more juicy details and red carpet recaps on E! News, Fashion Police and Live From E!.