Rookie boy group A-JAX has revealed their self-made commercial online.

This self-made commercial is broken down into 2 parts and will both be featured on their YouTube page.

With the concept of tests at school, the members acted out a classroom setting for the commercial.

This video was made as a way to thank their fans, but due to its sudden popularity, it also became a way for them to promote their new song, "Insane."

Watch the video below!