The annual Met Gala is the biggest fashion event of the year, and this year brought out countless celebrities in some amazing outfits. Every year has a theme, and it’s always interesting to see how designers interpret that theme to contribute to the amazing runway that is the event’s red carpet.

This year’s theme was “fashion in an age of technology,” and Zac Posen interpreted that literally with a lit up dress made out of fiber optic fabric and powered by 30 battery packs. Claire Danes modeled it beautifully, and truly shone at the gala.