is the boy who wouldn't grow up in thesefirst images of NBC's live musical Peter Pan.
star posted the snap on Instagram - and revealed that she was willing to cut off her long locks to take on the iconic role.Writing on the social media site, Allison said: "The transformation begins! My first shoot as Pan. Fun fact: I was all ready to cut my hair, then was told by the folks who actually know what they're doing that a wig works better for everybody. So, December 4th, here we come. #wiglife #peterpanlive #nbc"
She also spoke on American TV programmeThe Today Show
, adding:"I sort of very tentatively offered to cut my hair
, I was like, 'You know, if it's a thing that would help I could cut my hair,' and they were like, 'You're welcome to do that, we're still gonna put you in a wig.'" The producers of the show, which follows the success of the live production ofThe Sound of Music
starring Carrie Underwood, said of Allison: "She will reinvent the iconic role of Peter Pan with her wit, her warmth, her dynamic flying and her wonderful musical abilities."The 26-year-old actress, famous for playing the character of Marnie Michaels on Lena Dunham's hit HBO show, has been taken to the social media site Instagram for several weeks now totease fans of her new project.
She posted a short video of her first flying lesson a few weeks ago whereshe also remembered Robin Williams, the acclaimed actor who also once took on the role of Peter Pan in Hook.