INFINITE Kim Sung-kyu heated up the comeback mood by unveiling his concept trailer.

Woollim Entertainment unveiled Kim Sung-kyu's third mini-album "INSIDE ME" version A concept trailer on its official SNS channel at 9 p.m. on December 6th.

In the released video, Kim Sung-gyu wore a striped suit and appeared at the bar to show off his soft charisma, while in the converted scene, he exudes sexy masculine beauty with a see-through shirt styling to snipe fans' tastes.

Meanwhile, Kim Sung-kyu's third mini-album 'INSIDE ME' will be released on December 14th.