A lot of stars were out last weekend celebrating Halloween and there were some AMAZING costumes!
Like Halsey who dressed as Sony and Cher with American Horror Story star Evan Peters at an AHS event!
And she ALSO dressed as Marilyn Manson and looked eerily identical to him!
Then Jessica Biel and Justin Timberlake broke the internet when she dressed like the old school version of her husband and he was a microphone.
And lets not forget Demi Lovato's very scary Pennywise this weekend!