When your mom was the gorgeous star of G.I. Jane you're kind of allowed to do this, but it's still shocking! And come to think of it, Tallulah is sorta paying homage to her dad Bruce Willis too...

On Tuesday night recently-rehabbed Tallulah Willis decided to buzz all her hair off, and lucky for us she posted photos and videos on Instagram and Twitter! The 20-year-old starlet started by posting a few close-up shots of her new look, followed by the video below of her actually buzzing off her own locks with a pair of clippers.

Tallulah then posted several more shots on Twitter, and apparently her sisters approve of the new 'do. Rumer wrote, "@buuski is a bad ass bitch #GIjane #rawbeauty," while middle sister Scout posted the Vine video below of Tallulah singing fellow baldie Sinead O'Connor's hit "Nothing Compares 2 U."

Of course, Tallulah uploaded a photo of her mom on a red carpet back in the G.I. Jane days, which she captioned, "mawms is bae. #thankgodgoodheadshapesruninthefamily." Good head shapes may run in the family, but does good decision making? We love Demi Moore and all, but from smoking spice to marrying Ashton Kutcher, she's made a few mistakes over the years...


Click thru for another photo of Tallulah plus the video of her actually shaving her head...