Brown Eyed Girls Gain will duet with Park Myung Soo?

Park Myung Soo's manager Han Kyung Ho stated:

"It's true that we asked E-Tribe (who created the Infinity Challenge-duet song "Naengmyun") for a song. However, "Udon" is from another producer who had asked if we were interested in doing a new single with Brown Eyed Girls member Ga-in. But we declined."