Hwanhee is back! The Fly to the Sky member has released another solo album and we have his comeback performances in this very post. He made his comeback performance with the song 'While Doing' (..???) on M!Countdown. Though it's not a dance track, his smooth dance moves went well with the song, and he seems to be getting more mature and masculine with each album. Another obvious plus is that the song is quite catchy and soothing. Check out the performance: