Thirteen-member hip-hop boy group Topp Dogg has finally dropped in to the K-Pop scene with the release of their debut music video "Say It."

The group's agency, Stardom Entertainment, has been gradually releasing information about the group and its members one by one over the past couple weeks, piquing the interest of many K-Pop fans.

Billing them as a sort of 'hip-hop Super Junior,' Stardom has certainly come through with something dynamic and interesting for the fans.

There is definitely a lot going on - as fans of SM Entertainment's Super Junior already know - with over a dozen members the viewers' attention at times feels like it is being pulled in a million directions.

But Topp Dogg do a good job of focusing on the task and singer at hand with expertly arranged verses and choreography that gives each guy a chance to show off his personal characteristics and abilities.

The song itself is aggressive and interesting - mixing rap verses with a half frenzied, half slow-thumping hook. Combine that with excitingly complex dance moves and "Say It" is certainly a entertaining debut for Topp Dogg.

Many are curiously excited to see how the song and dance moves translate to live performance and are eagerly anticipating the group's upcoming promotional activities.

Also revealed at the same time, Topp Dogg's dance practice video gives fans insight into just how hard the members worked to prepare for the release of "Say It."

What do you think of Topp Dogg and their debut?