BOYNEXTDOOR has dropped their dance practice video for "One And Only."

In the video above, the KOZ Entertainment rookie boy group go over the choreography for the track. "One And Only" is a title song from the group's 1st single album 'WHO!', and the song's original music video can be watched here.

Watch BOYNEXTDOOR's "One And Only" dance practice video above, and let us know what you think in the comments below.