Girls star, Allison Williams, has just been cast as Peter Pan in NBC's live musical production of the show!

Williams will play Peter, while Christopher Walken will be playing everyone's favorite villain, Captain Hook. 

Allison said that she's wanted to play Peter Pan since she was three years old. And she wasn't kidding- she posted this throwback pic to her Instagram saying, "Thrilled to be playing Peter Pan live on NBC in December. I've been rehearsing for a REALLY long time." Awwww, so cute!

Congrats to Allison! Can't wait to see the show when it's on NBC on December 4th!