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Claire Danes arrives for the Costume Institute Benefit at the Metropolitan Museum of Art May 2, 2016, in New York. TIMOTHY A. CLARY/AFP/Getty Images

Cinderella moment on the Metropolitan Museum of Art’s Costume Institute Gala 2016’s pink, white and red carpet in NYC on Monday, May 2.

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The Homeland actress, 37, turned heads in a pale blue princess gown by Zac Posen that actually lit up with fiber optics, perfectly embodying the theme of the night: Manus x Machina: Fashion in an Age of Technology. She finished with Eva Fehren jewels. 

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Claire Danes attends the Manus x Machina: Fashion In An Age Of Technology Costume Institute Gala at Metropolitan Museum of Art on May 2, 2016. Dimitrios Kambouris/Getty Images

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While her hair was swept into a Grace Kelly-inspired chignon by celeb stylist Peter Butler, she made a statement with a cherry red lip. Celeb makeup artist Matin prepped her pout with ChapStick Total Hydration 100% Natural in Soothing Vanilla before applying the matte NARS Lana Audacious Lipstick.

Posen described the illuminated dress as “Celestial grandeur” in a teasing Instagram just hours before the Met Ball. “Guess who?” he continued.

Starry night! #Zacposen #metgala #glamour @metmuseum @voguemagazine @instagram

The designer later shared an even more revealing video of Danes and the dress, which featured intricate pleating and drape work as well as lit-from-within boning. “Starry night! #Zacposen #metgala #glamour @metmuseum @voguemagazine @instagram,” he wrote.

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