Stanley Tucci, Meryl Streep and Simone Ashley were at the American Museum of Natural History and Anne Hathaway and Patrick Brammall danced in Brooklyn.

Hathaway nailed the all-white look in a Phoebe Philo t-shirt featuring a train with Nili Lotan pants, and Prada pumps. She wore the vintage Coach briefcase with it, as well as the Barton Perreira sunglasses, and jewelry from Jemma Wynne and Natasha Schweizer.

Here's why fans are buzzing with the idea that Sydney Sweeney might be making a cameo in "Devil Wears Prada 2."