Sweet Girl is the sixth mini-album released by B1A4 under WM Entertainment, the  title song of the album, "Sweet Girl", along with the other songs, was produced by which South Korean singer, songwriter, record producer, and actor?
Jung Jin-young (singer): Jung Jin-young (Hangul: 정진영 ; born November 18, 1991), professionally known as Jinyoung, is a South Korean singer, songwriter, record producer, and actor.
i don't know