But it's not hard to see where Kate's good genes come from -- her mother Goldie Hawn, 68, also got in on the Halloween fun Thursday night, and looked fabulous in her own Sons of Anarchy get-up while posing with Kate and her pals.
"Mother of Anarchy is taking her daughters to a little party.... #HappyHalloween @hudsonjeans_pk #hudsons #partytime," Kate wrote on Instagram.
Μια φωτογραφία που δημοσίευσε ο χρήστης Kate Hudson (@katehudson) στις
In September, Hudson commented on her famously slim body, stressing that she'll "never" have an eating disorder.
"I won't have girls -- even if it is just one or two who care -- thinking that," she said to Red magazine about constant tabloid speculation on her weight. "Because it's a serious sickness, not something to plaster on the cover of a magazine. And I am the opposite."