[caption id="attachment_383565" align="aligncenter" width="460" caption="Work it!"][/caption] SS501's Kim Hyun Joong is ready to sweep fangirls off their feet with his smooth charms on the October 20th episode of Mnet 'M! Countdown'. The multi-talented star is promoting the song "Lucky Guy", which carries a fun flair in its melody. After watching his practice video a few days ago, fans are looking forward to seeing the fancy footwork on stage. Check out his comeback performance below!