This morning, we got our first look at Allison Williams in her latest role: the boy who never grew up in NBC’s forthcoming Peter Pan Live!. The Girls star chatted with The Today Show in the midst of final callbacks for the supporting cast. “It’s an absolute dream come true,” she said. “It’s so fun already; I can only imagine what the next couple of weeks and months are going to bring.” And of course, she has the Sound of Music mega-rating numbers on her mind: “We’re hoping for just a few, just a modest 20 or so million.” And what about that hair?! She revealed that although she "sort of very tentatively offered to cut my hair," the head-turning pixie-cut is, in fact, a wig. Catch Williams (and the wig) alongside Christopher Walken and possibly Christian Borle on December 4!