TEEN TOP have been vocal supporters of rookie group 100% since their recent debut. The group is taking that support one step further and joining forces to create a hilarious unofficial sub-unit, 'TOP Brothers'.

Earlier today, TEEN TOP released a practice video of the joint group, titled 'Teen Top and 100% Feeling Trot Melody Practice Video'.  In the video, the group perform an energetic medley of popular trot songs.

Recall that last year, TEEN TOP performed a trot medley & Shy Boy cover for MBC's 'Star Dance Battle' program, to rave reviews. The notes on the video don't clarify what exactly TOP Brothers were practicing for, but whatever it is, we are looking forward to seeing the final performance.

Watch the happy-go-lucky clip below: