Hailey Bieber rang in her 28th birthday in style. Last night, she took to Instagram to share a sneak peek at her birthday celebrations, which seemed to take on a martini theme. Her roundup of photos highlighted her cake—which leaned more into the theme with frosting that read,

Hailey Bieber turned 28-years-old and she celebrated with a group of friends and some delicious martinis, wearing no shirt under her leather coat.

In lieu of a traditional going-out top, Bieber took a page out of Kendall Jenner's recent playbook by wearing her jacket as a shirt. However, unlike Jenner's tailored croc blazer, Bieber chose a thick (possibly faux) fur-lined jacket with a certain Death Becomes Her je ne sais quoi.