Zone (EP)

Zone (stylized as ZONE) is the debut extended play (EP) by South Korean singer Jihyo of the girl group Twice. It was released on August 18, 2023, through JYP Entertainment and Republic Records. The EP contains seven tracks, including the lead single "Killin' Me Good" and six other tracks written and composed by Jihyo. The EP features collaborations with American rapper 24kGoldn and South Korean singer-songwriter Heize. It is primarily an R&B record that incorporates dance-pop, dance and ballad production with elements of Latin-inspired sounds and melodic ballads.

Domestically, Zone debuted at number one on the Circle Album Chart with half a million copies sold in the first week. Overseas, it chartered in various territories, including, Japan, the United States, the United Kingdom, Hungary, France, and Germany.