09/10/2012 09:33 am ET Updated Dec 06, 2017

Lena Dunham Cut Her Hair Off! (PHOTOS, POLL)

"Girls" creator Lena Dunham isn't afraid to push the envelope on screen. Now, the 26-year-old actress has made a bold move IRL, chopping off her hair into a so-hot pixie cut.

Dunham, 26, posted a photo of her hair on Instagram, tweeting, "I Miley'd the shit out of this Saturday." (She was referring -- where have you been?? -- to Miley Cyrus' recent platinum blonde hair chop of her own.)

For proof, Dunham took her new hair out for a spin in front of some tough critics at designer Rachel Antonoff's New York Fashion Week spring 2013 presentation. (Dunham, if you haven't heard, is dating Antonoff's brother, fun. guitarist Jack.) Clad in a red sweatshirt reading "I'M WITH HER," the actress flaunted her new 'do -- but is it a home run? Check out the pics and vote below!

lena dunham hair

lena dunham hair

lena dunham hair

See more celebs who've chopped it off:

Long vs. Short Hair: How Do These Celebs Look Best?

Want more? Be sure to check out HuffPost Style on Twitter, Facebook, Tumblr and Pinterest.

An earlier version of this post misidentified Jack Antonoff's role in the band fun.