Question: Love in the Moonlight starred what South Korean actor who is the leader and vocalist of the South Korean boy group B1A4 under WM Entertainment?
Sentence (from "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.
Relevant evidence: Yes