BOYNEXTDOOR have dropped their music video for "Good Day".

In the special MV, BOYNEXTDOOR reveal the behind-the-scenes of a performance they held for fans. "Good Day" is a b-side track on the boy group's debut Japanese single 'And,' which featured "Earth, Wind & Fire" as the title song.

In other news, BOYNEXTDOOR are set to make a comeback in September.

Watch BOYNEXTDOOR's "Good Day" MV above, and let us know what you think in the comments below.

SEE ALSO: BOYNEXTDOOR's '19.99' debuts at #1 on this week's Circle album chart