NCT U have dropped a dance practice video for "Boss"!

The SM Entertainment boy group made a comeback with "Boss" last week, and their music video has already reached over 10 million views. To thank their fans, NCT U revealed a look at one of their dance practice sessions. The group posted with their video, "NCT U 'BOSS' MV has reached 10 million views! Thank you for your love and support!"

Check out NCT U's "Boss" dance practice below!