Trust Kelly Brook to make a beheaded figure from history look super-sexy.
She posted a number of pics to her Instagram account, with one reading: "Beheaded this Halloween."
She was joined at the bash by other stars like Alessandra Ambrosio, Molly Sims, Sacha Baron Cohen, Isla Fisher and Julianne Hough.
And they're not the only stars getting in the Halloween spirit. Nicole Richie was yesterday spotted walking the red carpet wearing a pair of cat ears. And, believe it or not, they looked REALLY cute.
More KB below: