Article continues below advertisementHeidi Klum is gearing up for another year of headline-making Halloween attire. The supermodel, 52, teased her annual costume in a questionable video, biting a piece of paper on Wednesday, September 3. Klum sat in a chair as a mystery person in black gloves inserted a red slip into her mouth. She bit down on one side of the sheet before the man turned it over, and she did the same to the other side. Article continues below advertisementSource: @heidiklum/InstagramHeidi Klum goes all out for Halloween every year.