Group Brown Eyed Girls' Gain was revealed in a picture recording in secrecy.

Brown Eyed Girls' agency CEO LANCE posted on his Twitter, "Miss Son recording looks pretty, right? For whom? What song? If you guess, 50 cents!" along with a picture.

In the picture, Gain is showing off her clear skin while recording in the recording room.

Internet users showed much interest, trying to guess what project she was recording for.

Photo Credit: LANCE Twitter