Her shaved look is rumored to be for a new movie role - later in March, Kristen is expected to start production on her new flick "Underwater" in New Orleans.
The "Twilight" actress showed off her bleached blonde buzz cut at a screening of her film "Personal Shopper" in Los Angeles, People reported.
However, she got to a point that where she realised that talking about it might mean that it wasn't made such a big deal of and so, she joked about being "so gay" when hosting Saturday Night Live recently.
But her fresh look wasn't a totally spontaneous decision: It's reportedly for her role in the upcoming deep-sea thriller Underwater, in which she'll play a "jaded" researcher in crisis after an natural disaster damages her lab.
Pairing her new look with an all-black ensemble and heavy smoky eyeliner, there was nothing understated about it.
Her hairstylist Bridget Brager posted a photograph of the transformation on Instagram, writing: " We tried something a little different today". And, I loved it.
Kristen's hair has been getting shorter and blonder nearly every time we see her lately, but she really took it to the next level by shaving her head on March 7. I would cut it more, I would dye it more.
"I'm definitely going to shave my head before I die", the 26-year-old said at the time. "I will definitely tattoo my head while it's shaved before my hair grows back". I looked like a boy, fully.