Singer Seo In Gook revealed a picture while recording for SBS "The Master's Sun" OST.

Yesterday, Seo In Gook posted on his Twitter a picture of himself in the recording room. He is wearing a black shirt and has headphones on, looking at the camera.

'No Matter What' was released on September 17 and has been keeping its place on top of music charts. With this song, Seo In Gook has been successful both as a singer and as an actor of the SBS drama "The Master's Sun."

Photo Credit: Seo In Gook Twitter