Model Heidi Klum has teased her annual extravagant Halloween costume, revealing it took a year to make.

The 51-year-old, known for her impressive array of spooky costumes over the years, took to Instagram on Thursday morning (October 31) to update her 12 million followers.

She said: “Happy Halloween. Show us your costumes. I’m so excited to see all your creations. I can’t wait to show you mine. One year in the making.”

The model has previously dressed up as a worm, a werewolf and an alien.