The star took to social media to share a black and white photo of her rather skimpy costume, proudly showing off her baby bump in just a leopard print bikini.
The 25-year-old, who is engaged to boxer Wladimir Klitschko, also displayed some seriously impressive facial makeup for her leopard look.
Sharing the photo on Twitter, the actress simply wrote: “Happy Halloweeeeen!!!!!”
Happy Halloweeeeen!!!! pic.twitter.com/gZpGHl5iPk
— hayden panettiere (@haydenpanettier) October 31, 2014
Reports of Hayden’s pregnancy first broke earlier this year, with the star finally confirming the news by displaying her bump on the red carpet at the Emmy Awards.
Hayden revealed that the couple are expecting a daughter, telling a reporter that she “can’t wait for her to come out”.
