Allison Williams Sings 'I Won't Grow Up' in New 'Peter Pan Live Promo - Watch Now!

Check out Allison Williams channeling Peter Pan while singing “I Won’t Grow Up” in the first promo for the highly anticipated film Peter Pan Live!

The 26-year-old actress was joined in the trailer by Christoper Walken, who stars as Captain Hook.

PHOTOS: Check out the latest pics of Allison Williams

Mark your calendars, you can see Peter Pan Live on Thursday, December 4 on NBC. We can’t wait!

WHAT DO YOU THINK of Allison Williams’ singing in the new clip for Peter Pan Live?