Mix Nine contestants

South Korean singer, rapper and dancer

Jeon Hee-jin (; born October 19, 2000), known mononymously as Heejin (occasionally stylized as HeeJin) is a South Korean singer. She is a member of Loona, its sub-unit Loona 1/3, and Artms.

South Korean singer and rapper

Kim Hong-joong (; born November 7, 1998), mononymously known as Hongjoong, is a South Korean rapper, singer, producer, and songwriter. He debuted as the leader of the South Korean boy band Ateez in 2018. As of March 2026, he has 178 songs credited under his name on the KOMCA.

South Korean singer, rapper and actress, former member of Berry Good

South Korean singer, rapper and actor

Choi Jong-ho (; born October 12, 2000), known professionally as Jongho, is a South Korean singer and actor. He debuted as the main vocalist of the boy group Ateez in 2018. Jongho has also released multiple Korean drama soundtracks, including "Gravity" for the drama Reborn Rich and "A Day" for the drama Lovely Runner.

South Korean singer

South Korean singer

South Korean singer and rapper

South Korean actress

Woo Ji-seok (; born May 11, 1990), commonly known by his stage name Taewoon or ₩uNo is a South Korean rapper, singer, songwriter and record producer. He is a former member of the boy band Speed and pop group Coed School.

South Korean actress and singer