Heidi Klum leads celebs with over-the-top couples' Halloween costumes through the years

Couples' costumes on Halloween are always fan favorites, and even more so when it's a celebrity couple.

Heidi Klum and her husband look unrecognizable on the red carpet every year in head-to-toe prosthetics, while Sarah Michelle Gellar and Freddie Prinze Jr. have referenced iconic movies from the '80s in the past.

Here are some of the best couples' Halloween costumes from over the years.

The official Queen of Halloween always goes above and beyond for her annual Halloween party...