The latest photo trend on Instagram is called "Barbie Feet."
This is when a picture is taken with a foot or feet extended out as if it were in a high heels. It mimics the permanent state of a Barbie doll's feet.
The trend is popular because it makes the subjects in the pictures look taller and have longer legs.
This trend can even be done while laying down like Olivia Culpo.
Or even sitting down like Kendall Jenner.