John Legend and Chrissy Teigen take a lie detector test.

Does Chrissy relate with her fans? What are the secrets behind her marriage? Did she win a Mac & Cheese eating competition? Is John Legend his real or stage name? Was he popular in school? Does he think they would have dated in high school?

Vanity Fair challenged the couple to see who is the most truthful in the relationship.

Watch how they got on below;

This is gas!