Park Ji-hyo (박지효; born February 1, 1997), known professionally as Jihyo (지효), is a South Korean singer under JYP Entertainment. She is the leader of the South Korean girl group TWICE. She released her debut mini album, Zone, in August 2023, where it debuted at number one on the Circle Album Chart with half a million copies sold in the first week. The lead single, "Killin' Me Good", charted in five countries.