"Peter Pan Live!" Star Allison Williams Singing on "Girls," Kesha's "Tik Tok" and More (Video)

Allison Williams, known for playing Marnie Michaels on the HBO series "Girls," will play the title role in NBC's upcoming telecast of "Peter Pan Live!," which is scheduled for Dec. 4. Here are videos of Williams singing pop songs, on television and more.

Click here for more information on the live broadcast of Peter Pan.

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Williams singing as Marnie on "Girls":

"Stronger" on "Girls":

"Tik Tok":

"Hallelujah" by Leonard Cohen:

"Breaking Free" with Sam Tsui:

Williams in "College Musical":