Jason Momoa turned on the heat on Instagram after posting a steamy video.

The "Aquaman" actor intended to promote some new merchandise from his clothing range called "So iLL."

Wearing a piece from the collection, he looked good dressed in a lavender T-shirt and matching slippers.

He, howeve,r caught his fans off guard by pairing the top with his traditional Hawaiian Malo.

The garment which is a loincloth exposed his toned derrière that became the center of attention.

Urging his fans to purchase the items, he playfully walked back to his trailer, revealing his backside.

Followers of the actor happily commented on the actor's butt and tagged him a "national treasure."

Momoa had fans fawning over him last year after carrying out the same act.

Uploading several snaps on his Instagram, he made headlines while in the company of his buddies.