Dianna Agron is wonderful in white at Glamour‘s These Girls event held at Joe’s Pub in New York City on Monday night.

“Oh. THESE girls. Day of show y’all. pic.twitter.com/BovW1pNelk,” the 26-year-old actress tweeted before the big event.

Dianna joined Amy Poehler, Emma Roberts, Alexa Chung, Zosia Momet, Amy Schumer, and special guest Gloria Steinem for Glamour‘s night of monologues by a new generation of voices.