Hailey Bieber hasn’t revealed what she’ll be wearing this Halloween, but her pup is definitely already ready for a creepy bash. MORE: Squid Game Halloween costume ideas for 2021: Here's how to recreate the lookThe model shared the cutest photo of her dog wearing a huge spider costume, and the pooch did not seem thrilled by the transformation (although he looked absolutely adorable). WATCH: Hailey Bieber and Justin"Spooky SZN is upon us," she captioned the photo, which showed her snapping the