Halloween just wouldn’t be the same without Heidi Klum‘s over-the-top annual bash, which she’s hosted in both New York and Los Angeles since starting the tradition in 2000. The location and the date (in 2012, she rescheduled due to Hurricane Sandy) may have changed over the years, but one thing we can always count on is Heidi showing up in an extravagant costume. She’s dressed as everything from a werewolf to a butterfly — and even an apple! — and somehow still manages to surprise us with a creative new costume each year. Read through to see all of Heidi’s wild wardrobe choices over the past 18 years.