Another Halloween has come and gone, so now all we’re left with are the haunting memories of celebrity costumes. As per usual, Heidi Klum went to extremes to stand out at her annual holiday gathering. We were just disappointed that she didn’t enlist anyone to go as Roger Rabbit to coordinate with her Jessica Rabbit costume. Cats, Karl Lagerfeld with Choupette in tow and Harley Quinn from Suicide Squad all proved popular, while a few stars got more creative and took their getups to whole new levels of creepy. For all the spooktacular looks and best celebrity costumes, click on the slideshow above.